On the far side of the Moonlit Sea, where the waves made silver buttons on the water, there sailed a small pirate ship called the Marzipan Mackerel.

It was not a very frightening pirate ship.

Its flag had a tiny patch sewn onto it because a seagull had once pecked a hole through the middle. Its cannons were used mostly for firing fireworks on birthdays. And its captain, Captain Sanaa, wore a bright yellow coat with fourteen brass buttons, though only twelve of them matched.

Captain Sanaa’s crew was just as unusual.

There was Niko, the navigator, who could read maps upside down but always forgot where he had put his socks.

There was Marisol, the ship’s cook, who made cinnamon biscuits shaped like anchors, fish, moons, and once, by accident, a very grumpy-looking turnip.

There was Toma, who was very strong and could lift a barrel with one hand, but was afraid of tiny crabs.

And there was little Jun, the cabin boy, who was not very little anymore but still liked being called cabin boy because it made him feel important.

For many years, the crew of the Marzipan Mackerel searched for treasure.

They searched beneath old piers.

They searched on islands shaped like sleeping whales.

They searched in caves where the walls glittered with green stone.

They found a box of rusty spoons, three pearl buttons, a trumpet that only played one sad note, and a very polite turtle wearing a ribbon around its shell.

But they never found the sort of treasure that made a person gasp and say, “Well, butter my boots.”

Then, one cloudy afternoon, a white-winged gull swooped down from the sky and dropped a letter right onto Captain Sanaa’s hat.

The letter was sealed with blue wax.

“Who is it from?” asked Jun.

Captain Sanaa opened it carefully.

Inside was a paper that smelled faintly of salt, lavender, and old books.

“My dear Captain Sanaa,” she read aloud, “if this reaches you, it means I have gone on ahead to the place where all good sailors rest their tired feet. I leave to you and your crew my lighthouse on Bellweather Rock. Keep its lamp shining. It has always helped travelers find their way.”

The letter was signed by Captain Sanaa’s great-aunt, Auntie Amina.

“A lighthouse?” said Niko. “We inherited a whole lighthouse?”

“With stairs?” asked Toma nervously.

“Probably many stairs,” said Marisol.

Jun’s eyes grew round. “Does it have secrets?”

Captain Sanaa folded the letter and tucked it safely into her coat pocket.

“Every lighthouse has secrets,” she said. “The trick is asking them nicely.”

So the Marzipan Mackerel turned toward Bellweather Rock.

For three days and three nights, they sailed through misty waters. They passed a school of fish that flashed like coins beneath the waves. They saw a floating island made entirely of reeds, where frogs sang louder than a brass band. They skirted a patch of sea that bubbled with warm blue light.

At last, as the sun went down in a peach-colored sky, they saw Bellweather Rock.

It rose from the sea like the back of a giant gray whale. At its very top stood a tall lighthouse, striped in pale cream and deep red. Its windows glowed golden in the evening.

The lighthouse looked lonely.

The crew anchored the ship in a small cove, then climbed the winding path.

The front door was painted dark green. A brass knocker shaped like an owl waited in the middle.

Captain Sanaa knocked three times.

Toot. Toot. Toot.

The door creaked open by itself.

Inside, the lighthouse smelled of dust, cedar wood, and raincoats left near a fire. There was a round table, a stove, a shelf packed with jars, and a grandfather clock that had stopped at quarter past seven.

On the wall hung pictures of Auntie Amina when she had been young. In one, she stood beside a great storm with her hair flying wildly. In another, she sat on a beach with twelve children and a basket of oranges.

Jun spotted something else on the table.

“A map!” he cried.

But it was not a map of the sea.

It showed no islands, no routes, no dotted lines leading to buried gold.

Instead, it showed words.

The First Day of School.

The Summer of the Red Kite.

The Lost Blue Mittens.

Grandfather’s Garden.

The Night the Baby Wouldn’t Sleep.

“What kind of map is this?” Niko wondered.

Before anyone could answer, the wind outside began to howl.

The lighthouse windows rattled.

Far away, out at sea, a storm was gathering. Black clouds folded over one another. Lightning flickered inside them like a dragon turning in its sleep.

Captain Sanaa looked up toward the spiral staircase.

“We should light the lamp,” she said.

They climbed.

Round and round they went.

Past a room filled with old coats.

Past a room filled with glass lenses, each one the size of a dinner plate.

Past a room where hundreds of paper birds hung from the ceiling.

At last, puffing and panting, they reached the lamp room at the very top.

The great lens stood in the center, tall and shining. But its lamp was dark.

Beside it rested an old oil can and a note.

Captain Sanaa read it.

“To light the beam, pour in a true memory freely given. The lighthouse will show the way through places where hearts have become lost.”

The crew looked at one another.

“A true memory?” said Toma. “How do you pour a memory?”

Marisol opened a cupboard beneath the lamp. Inside were six small glass bottles, each empty, each with a silver stopper.

Captain Sanaa held one up. “Perhaps we begin by remembering.”

For a while, no one spoke.

Then Jun stepped forward.

“I remember,” he said quietly, “the day I first came aboard the Marzipan Mackerel. I was scared because I didn’t know anything about ships. Captain Sanaa gave me a small broom and told me every great sailor starts by learning where the dust goes. And then Marisol gave me a biscuit shaped like a star.”

As Jun spoke, a tiny golden glow appeared in the bottle he held.

It swirled like warm honey.

Jun smiled and poured it into the lamp.

The lamp gave a little cough.

Then a soft, golden flame appeared.

“Oho,” said Niko.

“I remember getting lost in the Fog of Sighs,” said Niko. “I thought I had failed everyone. But Toma kept ringing a saucepan with a spoon so we could follow the sound back to the ship.”

A pale blue light filled another bottle.

Toma blushed. “I remember that too. I was scared, but I didn’t want anyone else to be scared alone.”

One by one, they gave their memories.

Marisol remembered baking bread with her grandmother during a winter storm.

Toma remembered rescuing a baby seal tangled in fishing rope.

Captain Sanaa remembered being a young sailor, standing beside Auntie Amina, who had told her, “A captain is not the person who never gets lost. A captain is the person who helps everyone look for home.”

Their memories poured into the lamp.

The flame rose higher.

The huge lens began to turn.

A bright beam of light burst from the lighthouse and stretched out across the stormy sea.

But it did not shine on waves.

It shone into the air, where a strange path appeared.

The path was made of glowing moments.

There was a child sitting alone on a doorstep.

There was an old man staring at an empty chair.

There was a woman holding a torn photograph.

There was a boy in a yellow raincoat standing at the edge of a dark forest.

The beam moved gently among these memories, lighting little bridges and stepping stones that could not be seen before.

At that very moment, a bell rang from below.

Clang.

Clang.

Clang.

The crew hurried down the stairs and out onto the rocky shore.

A small boat had drifted into the cove. In it sat a girl about Jun’s age, wrapped in a purple blanket. She looked tired and frightened.

“My name is Zuri,” she said. “I was sailing with my father. The fog came, and I could hear him calling, but I couldn’t find him. Then the water brought me here.”

Captain Sanaa looked toward the shining beam.

In its golden path, she saw a memory.

A man in a blue coat stood at the wheel of a little fishing boat. All around him was thick gray fog. He was calling, “Zuri! Zuri!”

But he could not see the safe passage through the fog.

“The lighthouse can help him,” said Jun.

“But how?” asked Niko.

Captain Sanaa remembered Auntie Amina’s words.

It has always helped travelers find their way.

Not only travelers on the sea, she thought.

Travelers in their hearts.

Captain Sanaa knelt beside Zuri. “Tell us a happy memory of your father. One that makes you feel warm inside.”

Zuri squeezed the purple blanket.

Then she said, “He sings while he fixes nets. He makes up silly songs about fish. He has one about a cod who wanted boots.”

As she spoke, the lighthouse beam changed.

A little golden bridge appeared in the foggy memory. It stretched from Zuri’s lost boat all the way toward the fishing boat.

Far away came a faint sound.

A man was singing.

“Cod in boots, cod in boots, stomping all around…”

Zuri gasped. “That’s him!”

Captain Sanaa and her crew hurried aboard the Marzipan Mackerel. They sailed into the fog, following the lighthouse beam.

It was not like following an ordinary light.

The beam did not point left or right. It showed them feelings.

When Toma grew nervous, the beam became warm and steady.

When Niko worried he had chosen the wrong direction, the beam showed him the memory of finding his way home by listening to Marisol’s saucepan.

When Jun felt tired, the beam glowed with the golden star biscuit from his first day aboard.

And at last, floating quietly in a circle of silver fog, they found Zuri’s father.

He hugged Zuri so tightly that her purple blanket slipped onto the deck.

“My brave little gull,” he whispered.

Back at Bellweather Rock, after the storm had blown away and the stars came out, Zuri and her father slept in the lighthouse’s cozy downstairs room.

The pirate crew sat around the stove.

The lighthouse beam turned slowly above them.

Captain Sanaa unfolded Auntie Amina’s letter once more. On the back, there was one last line she had not seen before.

“The sea is full of hidden paths,” it said. “So are people. Keep a light for both.”

From then on, the Marzipan Mackerel still went on adventures.

They visited singing islands and windy coves. They found small treasures and strange treasures and once a chest full of buttons that insisted on rolling away whenever someone opened the lid.

But whenever the sky grew foggy, or someone felt far from home, Captain Sanaa and her crew returned to Bellweather Rock.

They would climb the many stairs.

They would light the lamp with a kind memory.

And its beam would sweep across the dark, showing the quiet, glowing way through.

Then, on the sea and in the hearts of those who needed it, no one had to feel lost for very long.