The Flag Before the Tide

Mateo held up the tiny flag. “The castle needs its very last piece!”

Luna, his cousin, shaded her eyes with one hand and pointed toward the ocean. “Then we’d better hurry. The water’s coming closer.”

Their sandcastle stood on a wide, sunny beach. A grown-up sat nearby, keeping an eye on them as they played well above the waves. The castle had four tall towers, a gate made from a shell, and a moat that curled around its walls. Mateo had packed each tower with careful pats. Luna had decorated them with little stripes of seaweed.

Now the castle’s tallest tower waited for its flag.

Mateo looked between himself and the castle. A narrow channel of seawater crossed the sand. It trickled from a shallow pool a little way from the ocean and wound toward the castle’s outer moat. The channel wasn’t wide, but it was right in the way.

“I can get across,” Mateo said. “I’ll take a shortcut.”

Luna held out a hand. “Wait. The sand might—”

But Mateo had already hurried toward the channel. He tried to step over its narrowest part. His sneaker landed on the sandy bank, and a clump crumbled into the water. The trickle slipped through the loose sand, then spread into a wider, shinier ribbon.

Mateo jumped back. “Oops.”

The flag wobbled in his hand, but he kept it safe. Luna hurried to his side.

“Your shortcut gave the water more room,” she said.

Mateo watched the channel creep across the sand. Farther out, a small wave rolled up the beach. Then another followed. At the shore, the sea level rose and fell with the tides. Today, the rising tide was bringing the water closer, little by little.

“Will it reach our castle?” Mateo asked.

“Soon,” Luna said. She didn’t sound worried, just thoughtful. “We can still get the flag up.”

Mateo studied the channel. The dry sand beside it looked soft and crumbly. Beyond the channel, the castle stood ready, its top tower bare.

He turned toward the water’s edge. “Let’s find a way around.”

Luna nodded. Together, they started along the beach, following the channel toward the shallow pool. Mateo held the flag high, like a tiny sail on a very important voyage.

The channel grew broader as Mateo and Luna followed it toward the water. It made a bend around a low mound of sand, then ran toward the shallow pool.

“Maybe we can cross at the bend,” Mateo said.

He stepped onto the dry sand beside it. His sneaker sank almost to the laces. When he pulled it free, a little heap of sand slid down the bank and splashed into the channel.

The water spread wider again.

Mateo stopped. “I made it worse.”

Luna gave him an encouraging smile. “You were trying to find a way. Let’s look carefully this time.”

They walked on, keeping clear of the crumbly edge. The tide’s shallow water lapped at the beach nearby. Mateo could see the castle behind them, still waiting with its empty tower. The flag pointed forward in the sea breeze.

At last, they reached the shallow pool where the channel began. It sat a little way from the ocean, with a broad strip of firm sand between the pool and the waves.

“Let’s go around the pool,” Luna said. “We can stay on the firm sand.”

They walked around the pool’s ocean-facing end, then turned back toward the castle on the other side of the channel. They never had to cross the water or step onto the crumbly bank.

The castle was just ahead. Mateo and Luna hurried over the packed sand. A small wave slid up the beach and began to fill the outer moat.

“Now!” Luna called.

Mateo reached the castle, but the top tower was taller than his arm. He and Luna stood beside it and gently patted down the top until it was low enough to reach from the ground. Mateo pressed the flagpole into the tower’s damp sand with both feet planted firmly on the beach.

The flag stood straight.

Just then, water reached the castle’s outer moat and curled around its edge. Mateo and Luna stepped back onto the firm sand. They had placed the very last piece just in time.

Mateo and Luna stood together on the firm sand beside the castle while the tide flowed into the moat. The little flag lifted and fluttered in the breeze. Its bright cloth flicked left, then right, as if it were waving to the ocean.

“Look,” Luna whispered. “The moat is doing its job.”

Water circled the castle’s base, filling the shell gate and tracing the tiny paths Mateo had pressed into the sand. The towers stayed upright. A small wave reached the outer wall, touched it, and slid back toward the sea.

Mateo sat down on a dry patch nearby. Luna sat beside him, and they watched the water move in and out. Their grown-up stayed close by as the tide rose at the shore, carrying a thin layer of seawater farther up the beach. The castle’s moat filled, and the edges of the sand softened.

“Do you think the flag can see the whole beach?” Mateo asked.

“From up there, it can see everything,” Luna said. “The ocean, our footprints, and that very important shell gate.”

Mateo grinned. “It can see you, too.”

A breeze ran along the beach and lifted the flag again. The waves gently reshaped the sand around the castle. One tower slumped a little. A curved path blurred. The shell gate tipped sideways, but the flag kept waving above it.

Mateo didn’t try to fix anything. He and Luna stayed where they were, listening to the small waves whisper against the shore. The beach was quieter now. Their footprints stretched behind them in a winding line, from the castle, around the channel, and back again.

When it was time to leave, Mateo gave the castle one last look. The water had reached its walls, and the sand was changing beneath the waves. The flag still stood on top, dancing in the breeze.

“Goodnight, castle,” Mateo said.

“Goodnight, flag,” Luna added.

They walked away together, carrying the day’s salty air with them. Behind them, the tide flowed gently over the beach, while Mateo’s little flag fluttered above the sand until the waves softly reshaped the castle.