The Leaf Sub and the Bark Sub

Nutty came to breakfast with a drawing.

The drawing showed a long tube with windows, a propeller, and three squirrels inside waving at a fish. Underneath, in Nutty's best handwriting, it said SUBMARINE.

"I would like to go to the bottom of the river," Nutty announced.

Papa Nutwobble set down his toast. "I have always wanted to go to the bottom of the river."

"You have never once mentioned the river," Mama Nutwobble said.

"I was waiting for the right moment." Papa studied the drawing. "This is the right moment."

Grandma Nutwobble was visiting for the week. She looked at the drawing over her tea. Then she looked at Nutty. Then she looked at Papa.

"No," she said.

"We haven't asked you anything yet," Nutty pointed out.

"I can see where this is going." Grandma sipped her tea. "I have been in this family a long time."

Mama picked up the drawing and turned it sideways. "What are you planning to build it out of?"

Nutty had not gotten that far.

By mid-morning, they had gathered what Nutty called "perfect submarine materials" from around the yard: autumn leaves, vines, and pine needles.

Papa held up a large red maple leaf. "Waterproof."

"That is not waterproof," Grandma said from the porch.

"It repels rain," Papa said.

"Rain lands on it. Then the leaf gets wet. That is the opposite of repelling."

Papa considered this. "It repels rain briefly."

They built the submarine anyway. It looked like a large, aggressive salad held together with vines. Nutty added pine needles for what he called "technical detail." Nobody asked what that meant.

"Beautiful," Papa said.

"Ambitious," Mama said.

"I'll be on the porch," Grandma said.

At the river, the leaf submarine floated for about four seconds.

Then it began soaking up water with the enthusiasm of a towel that had been waiting its whole life for this opportunity.

"It's drinking the river," Nutty observed.

The vines went slack. The pine needles drifted away. The whole thing sagged, darkened, and sank with a quiet, defeated gurgle.

Papa watched the last bubbles rise. "Hmm."

A face surfaced where the submarine had gone down. It belonged to a catfish named Gerald, who was old, gray, and had the permanent expression of someone standing in a long line at the post office.

A soggy leaf was draped over one whisker.

"Let me guess," Gerald said.

"We're building a submarine," Nutty said.

"You built a salad." Gerald removed the leaf with great care. "And you dropped it on my roof."

"We're going to explore the bottom of the river," Nutty continued, because he had not yet learned to read a room when the room was underwater.

Gerald stared at him for a long time.

"The bottom of the river," Gerald said, "is mud. I have lived in this mud for forty-seven years. It is not exciting mud. It is regular mud."

"There could be anything down there," Nutty said.

"There is mud down there. I just told you."

"We'll see," said Nutty.

"You will see mud," said Gerald, and sank back under the water.

That afternoon, Nutty had a new plan.

"Tree bark," he said. "Bark protects trees from rain. It's nature's waterproofing."

Mama nodded. "Better reasoning this time."

"Worse reasoning," Grandma said from the porch, "but louder."

They collected bark from fallen branches. Birch bark that curled like paper. Oak bark with ridges. Pine bark that smelled like the holidays. Nutty drew a real blueprint this time: a sealed hull, a hatch on top, sap for glue, and a periscope made from a hollow reed.

Papa was in charge of shaping the hull. Mama sealed the seams with pine sap. Nutty carved the periscope himself, which took two hours and looked like a reed that had been in a fight, but it worked.

"Much better," Mama said, stepping back.

It did look much better. It looked like something that might actually go underwater on purpose.

"Not bad," Grandma said. She had come down from the porch to inspect it, which was the closest Grandma got to a compliment.

At the river, the bark submarine floated. It kept floating. It floated with confidence.

"Get in before it changes its mind," Mama said.

All three squeezed through the hatch. It was tight. Papa's face was pressed against a piece of oak bark. Mama's tail was in Nutty's ear. But they were inside, and the submarine was holding.

Papa dropped the ballast stones. "Dive."

They sank. Slowly, smoothly, properly.

"I can see fish," Nutty whispered through the periscope. "And a turtle. And some kind of plant that looks angry."

"That's watercress," Mama said. "It always looks angry."

For three full minutes, everything was perfect.

Then Nutty noticed his feet were wet.

Then Mama noticed her feet were wet.

Then Papa noticed that everyone's feet were wet and the water was rising and the bark seams were leaking in about fourteen places at once.

"The sap isn't holding," Mama reported, which was obvious because the river was now ankle-deep inside the submarine.

Papa tried to reach the emergency ballast release. He could not move his arms because he was wedged between Mama and a curved piece of oak.

"I am stuck," Papa said calmly.

"We are all stuck," Mama said, less calmly.

"And sinking," Nutty added, for completeness.

Ten minutes later, three wet, bark-covered squirrels sat on the riverbank.

Gerald surfaced next to the half-sunken bark hull. He examined it the way a building inspector examines a house that has been built entirely out of optimism.

"Another one," Gerald said.

"We lasted ten minutes this time," Nutty said.

"Congratulations. Your leaf pile from yesterday? A family of minnows moved in. They're calling it the Leaf Loft. They put up curtains."

Mama blinked. "Seaweed curtains?"

"Little ones. Very tasteful." Gerald looked at the sinking bark hull. "I give this one three days before it becomes the Bark Bed and Breakfast. The local fish are already forming a waiting list for Nutwobble-brand disaster housing."

"We are not trying to build fish houses," Nutty said.

"And yet," Gerald said.

He sank back under the water.

On the porch at home, Grandma was waiting with towels and hot cocoa.

"How was the bottom of the river?" she asked.

"We didn't reach the bottom," Nutty admitted.

"I am astonished," Grandma said, in a voice that contained no astonishment whatsoever.

But Nutty was already sketching in his notebook. The leaves had been too absorbent. The bark had been too leaky. He needed something naturally waterproof, naturally sealed, naturally the right shape.

He looked at the acorn on the kitchen table.

He looked at it for a long time.

"Papa," he said. "How many giant acorn shells do you have in the workshop?"

Papa grinned. "Three."

Grandma sighed the sigh of a squirrel who could see exactly what was coming and knew there was no stopping it.

"More towels tomorrow, then," she said.

The Acorn Fleet

Papa's giant acorn shells were each the size of a soup bowl, with thick walls and a smooth curve that looked almost like it had been designed for underwater travel.

"Nature's submarines," Nutty said, holding one up.

"Nature's acorns," Grandma corrected.

"Same thing."

"Profoundly not the same thing."

But even Grandma had to admit the shells were impressive. They were dense, watertight, and when Nutty tapped one with his knuckle, it made a solid, serious sound.

Mama ran her paw along the inside. "No seams to leak. No joints to separate. This is one solid piece."

"Individual submarines," Nutty said, lining up the three shells on the workbench. "One for each of us. We go down together as a fleet."

Papa was already drilling a hole for a periscope. "The Acorn Navy."

"Please don't call it that," Mama said.

"Admiral Papa reporting for duty," Papa said.

"I asked you not to call it that."

Nutty designed hollow-reed periscopes, moss padding for the seats, and tiny paddle wheels made from twigs that they could spin with their paws. Mama engineered the ballast system: pebbles on strings that could be lowered for sinking and pulled up for surfacing.

Grandma watched from a stool in the corner of the workshop, eating peanuts.

"You're not going to tell us this won't work?" Nutty asked.

"You didn't listen the last two times," Grandma said. "I am conserving energy."

At the river, three acorn submarines bobbed in the shallows. They looked surprisingly good. Like tiny, serious vessels with reed periscopes and paddle wheels, ready for business.

Gerald was already there. He said he was conducting a routine river census and that his presence had nothing to do with the squirrels.

"I count fish," he said. "It's important municipal work."

"You've been staring at the bank since sunrise," said a passing minnow.

"The census includes the bank," Gerald said.

Grandma had come along this time. She sat on a rock with a thermos of tea and a book, which she opened but did not read because she was watching.

"Test dive," Nutty called, climbing into his shell. It fit perfectly. Snug but not cramped. Room to breathe, room to paddle, room to see through the periscope.

"Communication check," Papa said into his reed. His voice carried clearly. "Admiral Papa to Nutty, do you copy?"

"I copy. Mama?"

"Ready," Mama said. "And nobody is an admiral."

They lowered the pebble ballast. Down they went.

This time, everything worked.

The shells did not leak. The paddle wheels turned smoothly. The periscopes gave a clear, wobbly view of the underwater world. They could steer, they could stop, they could hover in place by adjusting the pebble lines.

"I can see the river bottom," Nutty said. "There's a whole field of water plants. And the minnows are waving from the Leaf Loft."

"The Leaf Loft has a mailbox now," Mama reported from her submarine.

"Of course it does," said Gerald, who was swimming alongside them and pretending not to be. "Property values are up twelve percent since you started dumping construction materials in the river."

They explored for twenty minutes. They saw water beetles, a crayfish who waved with both claws, and a school of bluegills who scattered and then came back because the acorn submarines were interesting and also very small.

But the river got deeper, and eventually the pebble-ballast system ran out of string.

"We can't go any further down," Mama said. "Not enough line."

Nutty peered through his periscope at the dark water below. The river kept going. Way down there, it narrowed into what looked like a rocky trench, deep and shadowy and completely unexplored.

"What's down there?" Nutty asked.

Gerald, who had been swimming alongside them for the entire dive and was no longer pretending otherwise, went quiet for a moment.

"Nobody knows," he said. "Too deep for fish. Too dark to see. I've lived in this river forty-seven years and never been down that far."

"Never?"

"Never had a reason." Gerald paused. "Still don't."

But he was looking at the trench the way someone looks at a locked door they have walked past every day of their life.

Back on shore, the acorn submarines sat in a proud little row on the bank. Nobody had needed rescuing. Nothing had sunk. No emergency exits had been required.

Grandma closed her book. She had not turned a single page.

"Well?" Nutty asked.

"You went underwater and came back," Grandma said. "That is a significant improvement over the salad."

From Grandma, this was a standing ovation.

"But the acorns are too small to go deep," Nutty said. "We need something bigger. Something that fits all of us. Something with a real ballast system and a real air supply and room to actually explore."

Gerald surfaced near the bank. "So you're coming back."

"Tomorrow."

"I won't be here," Gerald said. "Busy day. Census work."

"There is no census," said the minnow, who was eavesdropping from the Leaf Loft mailbox.

"The census," Gerald said firmly, "is ongoing and confidential."

Grandma poured the last of her tea into the river, which was her way of saying the outing was over. "What are you building next?"

Nutty held up a pine cone. It was enormous. The size of a melon, with thick, overlapping scales that locked together so tightly not a drop of water could get between them.

"Where did you find that?" Papa asked.

"The old pine tree by the waterfall. It fell last night in the wind."

Mama took it and turned it over. Solid. Dense. Naturally streamlined. Already shaped like a hull.

"That could work," she said.

Grandma looked at the pine cone. She looked at Nutty. She looked at the river.

"I'll pack a lunch tomorrow," she said. "This one might take a while."

The Pine Cone Explorer

They worked all morning.

Papa opened up the pine cone scales to hollow out a cabin. Mama designed the air system: a network of hollow reeds that could telescope up to the surface. Nutty built paddle wheels twice the size of the acorn versions, plus a bark rudder and fins for steering.

The ballast system was the real improvement. Instead of pebbles on strings, Mama engineered waterproof pouches made from pine pitch and moss. Fill a pouch with river water, and the submarine sinks. Empty it, and the submarine rises. Precise, adjustable, and no string required.

Grandma sat in the workshop with her knitting. She did not offer advice. She did not say it would fail. She simply knitted and watched, which was somehow more unnerving than if she had been critical.

"You're being very quiet," Nutty said.

"I'm knitting."

"You're judging."

"I can do both."

By noon, the Pine Cone Explorer was finished. It had a proper hatch, three seats with moss cushions, sap windows for viewing, the telescoping reed air supply, the adjustable ballast pouches, paddle wheels, a rudder, and fins. Nutty had even carved a small compartment for emergency snacks, because Papa had asked eleven times.

"One compartment," Nutty said. "No conveyor belt. No midnight protocol."

"I was not going to suggest a midnight protocol," Papa said, in the voice of someone who had absolutely been about to suggest a midnight protocol.

Gerald was at the river. He had been there since dawn.

"Census," he said immediately.

Nobody responded to this.

The Pine Cone Explorer slid into the water and floated with a low, steady confidence that none of their previous submarines had possessed. It looked like it belonged in the river. It looked like it meant business.

Gerald circled it once. Twice. He poked it with a whisker.

"Adequate," he said.

"Thank you, Gerald."

"For a land mammal project."

Grandma settled on her rock with a fresh thermos and the same book she had not read yesterday. "Go on, then."

They climbed through the hatch. The cabin was roomy. All three fit with space to spare. The sap windows gave a greenish, wavering view of the river, and the light that came through was soft and strange and beautiful.

"Flood ballast," Nutty said.

Mama filled the first pouch. The submarine sank, smooth and slow.

Past the shallows. Past the middle water where the acorn fleet had turned back. Past the ledge where the bluegills lived and the watercress grew in angry little bunches.

"We're deeper than we've ever been," Papa said quietly.

Through the windows, the river was a different world. Underwater caves in the bank. Long trailing plants that swayed in the current. A crawdad the size of Nutty's fist, sitting on a rock and looking offended about it.

Gerald was swimming alongside them. He had stopped pretending he was doing anything else.

"The trench is ahead," he said. "Around the next bend, the riverbed drops off."

Mama checked the air reeds. All clear to the surface. She checked the ballast pouches. Plenty of capacity left. She checked the hull.

"Dry inside," she reported. "Not a single leak."

Nutty grinned. "Take us down."

The trench opened beneath them like a mouth.

The river, which had been wide and gentle, narrowed into a rocky corridor that dropped steeply into darkness. The light from above faded from green to gray to something close to black.

"More ballast," Nutty said.

Mama filled another pouch. They sank deeper.

Papa pressed his face to the sap window. "I can't see the bottom."

"There's a lot of river down here," Gerald said. He was swimming slowly now, looking around at rock formations he had never seen before. Forty-seven years on the river, and this was new to him.

"It's just mud down there, right?" Nutty said, with a small grin.

"Probably," Gerald said. But his voice had changed. The permanent grumpiness had thinned out, and underneath it was something that sounded a lot like wonder.

The Pine Cone Explorer descended into the deepest part of the trench. The walls were smooth stone, carved by centuries of current. Small fish with pale, almost transparent bodies drifted past the windows. A catfish twice Gerald's size glided by without a glance, heading somewhere important.

"How deep are we?" Papa whispered.

Nutty checked the depth gauge, which was a weighted string with knots tied at intervals. "Deeper than the string goes. I ran out of knots."

"That seems like something we should have planned better," Mama said.

"Noted for next time."

The bottom of the trench was not mud.

It was smooth stone, scattered with round pebbles and tufts of pale underwater moss. It was quiet down here. The current barely moved. The only sound was the soft creak of the pine cone hull and the gentle splash of the paddle wheels.

Nutty pressed his face to the window.

"There's nothing golden down here," he said. He didn't sound disappointed, exactly. More like someone confirming what he had already suspected.

Gerald drifted to the window. "Told you."

"You did."

"Forty-seven years I've been saying there's nothing magical at the bottom of this river."

"And you were right."

Gerald opened his mouth to say something grumpy, then closed it. He looked around at the smooth stone floor, the pale moss, the deep blue darkness stretching away in every direction.

"But I've never actually seen it," he said.

Nobody spoke for a moment.

"It's something, though," Papa said. "Even without a golden acorn. It's really something."

It was. The bottom of the river was strange and still and entirely unlike anything any of them had ever seen. Pale plants grew in clusters on the rocks. Tiny shrimp, almost invisible, drifted through the water like living dust. A snapping turtle the size of a dinner plate sat on a stone ledge and watched them with old, calm eyes.

"I have lived above this my entire life," Gerald said quietly, "and I never came down to look."

"Well," Nutty said, "now you have a submarine."

They surfaced in the late afternoon.

The Leaf Loft minnows cheered from their mailbox. The Bark Bed and Breakfast had a new sign out front: VACANCY - NO SQUIRRELS. The three acorn shells from yesterday were still beached on the bank. A family of clever fish had already connected two of them with sticks and were debating whether to add a patio.

"The Acorn Arms," Gerald said, looking at the fish condo. "Opening next week. You Nutwobbles have accidentally started an underwater housing boom."

Grandma was on her rock. Her book was open to the same page as yesterday.

"Well?" she said.

"We made it to the bottom," Nutty said.

"And?"

"It's mud and rocks and pale moss and a turtle that looked at us like we owed it money."

Grandma almost smiled. "No golden treasure? No magical discovery?"

"Nope."

"Good. Magical discoveries are very overrated." She poured Nutty a cup of tea from her thermos. "But you built a submarine that works. That's not nothing."

Papa climbed out of the hatch, stretched, and immediately went to check on the Bark Bed and Breakfast, which was fully booked and had a fish concierge.

"We did accidentally become the biggest real estate developers in the river," he said.

"Every failed submarine is somebody's dream home," Mama said.

Gerald surfaced near the bank. He looked at the Nutwobbles. He looked at the Pine Cone Explorer. He looked at the trench, somewhere far below, where the bottom of the river sat quietly being itself.

"So," he said. "Same time next week?"

Nutty stared at him. "You want to come back?"

"I did not say that." Gerald cleared his throat. "I said same time next week. That is a scheduling question, not an emotional one."

"We'll be here," Nutty said.

"Fine. I might also be here. Unrelated reasons."

"Census work?"

"Census work."

Gerald sank under the water. Then he came back up.

"The south fork," he said. "Past the big rocks. There's a whole canyon system down there I've never explored."

"Gerald," Mama said. "Are you asking us to take you exploring?"

"I am providing geographic information," Gerald said. "What you do with it is your business."

He sank again. This time he stayed down.

Nutty packed up his notebook. Inside were sketches of all three submarines, each one a little better than the last, each one with notes about what worked and what went wrong.

"You know what the best part was?" he said.

"The part where nothing exploded?" Grandma offered.

"The part where Gerald looked out the window and forgot to be grumpy."

Grandma folded her knitting into her bag. "That is a good part."

They walked home in the late afternoon light, leaving the Pine Cone Explorer anchored at the bank, ready for next week. Behind them, the Leaf Loft minnows were discussing an expansion. The Bark Bed and Breakfast had just received its first review, which was apparently four stars because the walls smelled like pine sap.

"South fork next week," Papa said. "We'll need a longer depth string."

"And more snack compartment," Papa added.

"One compartment," Nutty said.

"A slightly bigger one compartment?"

"We'll discuss it."

Grandma walked ahead, carrying her thermos and her unread book and the quiet satisfaction of a week that had gone exactly as badly and exactly as well as she had expected.

"Grandma," Nutty called. "Are you coming next week?"

She didn't turn around.

"Someone has to bring the towels," she said.

THE END