Three Notes for the Whales

"Bmmm," said the bell at the front of the ferry. One low note, round as a plum, the way a stone sounds when it lands in deep water. Theo rolled out from under the wheelhouse, rang the bell twice more, and listened to the note roll out over the sea and come back smaller, the way a voice does when it crosses a big room.

Theo was a small helper robot, no taller than a kettle, with tin the color of an old spoon and two wheels where his feet should have been. His right ear was shaped like a seashell, curled and faintly pink inside, and it was the best ear on the whole ferry. His left wheel had a small, polite squeak in it. Inside his chest was a metal drawer, and inside the drawer, in careful order, were the sounds of the boat.

Every evening, before the ferry crossed the wide silver water to the little island, Theo opened the drawer and let one sound out. The creak of the hull. The tick of the kettle. Nana Ives humming in the wheelhouse with one hand on the wheel. Then the whales would rise out of the dark and hum the tide to sleep, and the sea would go flat and bright, and the ferry would have a moonlit road to follow all the way home.

Ada was nine and she belonged to the ferry the way the funnel did. She was Nana Ives's granddaughter, and she spent every crossing on the wooden bench beside the wheelhouse, where the window light fell on her knees. Nana Ives said a captain has to know every sound her boat makes, so Ada was learning them, one at a time, and writing them in a notebook with a whale on the cover.

Tonight she was learning a whistle. Three notes: up, up, down, with a small breath at the end, like a question she hadn't finished asking. She had been practicing it since the harbor wall, and she was almost, nearly, absolutely sure of it.

When Theo was unpacked from his crate three winters ago, Ada had been the one to ring the bell for him. "There," she'd said. "Now you've got a sound to keep." He had kept it ever since. It was the oldest thing in his drawer, and he had never told her so, because he liked having one private thing.

Tonight she whistled her three notes at him. "Put that one in your drawer," she said. Theo's drawer clicked open and shut, which was how he thought when he was being careful. "The drawer is for sea sounds," he said. "Hull sounds. Kettle sounds. That one's a pocket sound."

"What's a pocket sound?" "A sound that stays in your pocket," said Theo. "It doesn't go anywhere." Ada's cheeks went pink. "You never listen with your whole ear," she said. "You just listen for the drawer."

Theo's seashell ear went warm, which happened when he was embarrassed, or when he had a screw loose, or both. "I listen with my whole ear all the time," he said, and it came out clanky. They both went quiet then, and the quiet sat down between them on the bench like a third passenger nobody wanted to talk to.

Nana Ives leaned out of the wheelhouse, one hand on the wheel, one hand around her mug. "Everything all right out there?" "Fine," said Ada. "Perfectly fine," said Theo. Nana Ives looked at the two of them, then at the water. "Right," she said. "Mind the wet deck, the both of you." Then she went back to steering, because she was the sort of grown-up who knew when to stay close and say nothing.

When the sun was gone and the sky had turned the color of dishwater, Theo opened his drawer and played the evening's sound. It was the creak of the hull, one long oooh, and the plip of a rope tapping the mast. The sound rolled away over the water. Theo turned his wheels toward the sea and waited. Nothing came up.

He tried again. The kettle's tick, then Nana's hum, low and warm. Out it rolled. The sea stayed lumpy and dark, and the moonpath broke into a thousand little pieces that would not hold together. Somewhere far off, something big turned over in the water and sighed, and went back down.

"They didn't answer," said Theo. "They always answer," said Ada. "I know," said Theo. She was still cross with him. He could tell by how she sat, elbows on her knees, chin in her hands, looking straight ahead.

He wanted to say something and could not work out what it was. So he rolled to the other end of the ferry and played the drawer's oldest sounds, one after another, the way you might knock on a door again and again and hope. The bell. The spoon in Nana's mug. Rain on the roof from three summers ago.

The whales stayed down. The ferry slid on through the lumpy water, slow as a thought before breakfast, and the island stayed small and far away. Nana Ives came out and stood at the rail with her mug and looked at the broken moonpath. "No hurry," she said. "It's a long night and a short sea. We'll circle a while." Then she said, "Maybe they're waiting for something they haven't heard before."

Theo's drawer clicked. Open, shut. Open, shut. It was a thought he did not like, because his drawer was full of the oldest and best sounds, and he had played every one of them a thousand times. He had played them so often that the whales could probably hum them in their sleep, which, he understood suddenly, was exactly what he had been asking them to do.

Theo had a joke he told himself when he was worried: that he was mostly drawer and only a little bit robot. It was funnier on some nights than others. Tonight it wasn't funny at all.

That was when he heard it. Very quiet, near the front of the ferry, Ada was whistling to herself. Up, up, down. Up, up, down. She did it the way people do when they think no one is listening: softly, and a little crooked, with the small breath at the end. Theo listened with his whole ear. He listened so hard that his left wheel stopped squeaking.

He rolled over. "Ada." She stopped. "What." Theo thought about his drawer. He thought about the quiet sitting between them like a third passenger. He thought about how the drawer was only a drawer, and the sound was better out in the air. "That was a sea sound," he said. "I was wrong. I'm sorry I said it was a pocket sound."

Ada looked at him over her shoulder. "I'm sorry I said you never listen with your whole ear." "You were a bit right," said Theo. "I was listening for the drawer." He rolled a little closer. "Will you whistle it again? I need to hear it properly, three times, so I can keep it exactly."

"Three times?" "That's how long my ear takes," said Theo. "It's a good ear. It's just slow."

So Ada whistled. The first time, Theo heard the three notes. The second time, he heard the small breath at the end. The third time, just as he was opening his chest drawer, his left wheel let out its tiny, polite squeak, and it slipped in among the notes without asking.

"Oops," said Ada. "Shh," said Theo, which was the politest thing he had ever said to her, and he shut the drawer with the whistle and the breath and the squeak all in it together.

"You gave me the first sound in this drawer," he said. "It's only fair you gave me the newest one too." Then he played it to the sea. Up, up, down went the little notes, out over the water, with the breath at the end like a question and the squeak wiggling after them. For a long moment nothing happened. Theo's ear went warm. Ada pulled her feet up onto the bench, which was what she did when she was hoping hard.

Then, far out, something hummed. Hmmm. Low and round, like a bee asleep inside a jar. It rose up out of the water, and a second hum came with it, higher, and then a third, and the sea went flat and silver in a line straight out from the ferry's nose.

"They heard it," said Ada. "They heard you," said Theo, and his wheels squeaked with delight.

Old Round, the big humpback who had been humming to this ferry since before Theo was made, came up beside them and lay in the moonlight. She hummed three notes back at the boat. Up, up, down. But slower, and lower, so that it sounded like the same question asked in a deeper voice. Ada laughed out loud. "She's copying me!"

"She's answering," said Nana Ives from the wheelhouse. "Mind you stay back from the rail, chick."

Then more whales came, and more than that, and the whole sea began to hum. Old Round's hum was the lowest, and hers was the one that made the water lie down flat. The moonlight gathered itself into a path, wide and silver, and the ferry turned onto it the way a cart turns onto a proper road.

Theo sat on the bench beside Ada with his wheels switched off. His drawer was open a crack and he did not play anything else. He just listened to the hum go out and come back, out and come back, and the note went right through his tin chest and sat there, warm.

After a while Ada said, "Theo." "Yes." "Was it really a sea sound?"

Theo thought about it. "It was a sound that came from the sea," he said. "You were on the sea when you made it. I don't know how it could be any more of a sea sound than that." Ada pulled her cardigan over her knees. "Next week I'm learning a different one. It's four notes."

"Four," said Theo, and his drawer clicked contentedly. "You'll have to whistle it slowly." Ada took out the notebook with the whale on the cover, the one where she kept the sounds of the boat, and wrote in it: THEO'S SQUEAK. VERY SMALL. VERY GOOD.

Nana Ives brought out two mugs of cocoa and one small cup of warm milk for Theo, who did not drink milk but liked to hold the cup. The ferry slid along its shining road, and the island grew nearer, black and soft, with a lantern on the hill already blinking its slow welcome. The whales hummed. The tide went to sleep.

Ada leaned against Theo's tin shoulder, and Theo sat very still so that his squeak would not wake her. Inside his chest drawer, the smallest sound in the world was tucked in with all the others: three notes, a breath, and one polite squeak. He played it over in his head, up, up, down, and the sea hushed along the hull and folded onto the island sand.

The last whale hummed one long, low note that went on and on, as though it had forgotten where it was going, which was all right, because it wasn't going anywhere. It was only going to sleep.

Above them the moon laid down its path on the water, and the ferry followed it home at the speed of a yawn. Theo, small helper robot, keeper of the sounds of one slow boat, closed his drawer, folded his ear, and let the hum carry him down into the quiet.