The Jellylight Conservatory sat on a wooden pier that creaked like an old story. It had many glass rooms, like a string of lanterns, and each room hummed a different note when the jellyfish inside blinked. Wren loved to work there. She could tell, by the tilt of a bell and the warmth of a glass, which jellyfish were well fed and which wanted a story.
Wren was nine. Her hair always had salty crumbs at the ends, her trousers had a dozen patches, and her hands were quick and calm. She moved along the glass with the steady care of someone who had learned to be gentle with tiny, bright things. Tuck — a round, soft creature with little whiskers and eyes like buttons — trailed her like a shadow. Tuck liked to climb into her hood and make a small thumpy purr.
Maester Lobe, the Conservatory keeper, smelled of warm tea and rope. He walked slowly and spoke in low lines of verse that made jellyfish blink in sympathy. "Morning, Wren," he said the way the Conservatory said hello: softly, like a bell put to a pillow.
They checked the tanks together. Tiny pink jellyfish pulsed like heartbeats; a blue one glowed in wide slow circles; a band of silver jellies sang a chime that sounded like distant rain. Wren fed them sugar-crystal flakes on the tip of a driftwood spoon. She murmured small stories about the day the harbor learned to laugh. The jellies listened with their light.
When Wren reached the farthest tank, she stopped. One jelly that should have brightened like a coin was dull as a stone. It hung flat in the water, the light inside like a candle that had slipped lower.
"Not right, is it?" Maester Lobe asked without moving his lips. He held the glass and tilted it to make the jelly drift. It did not answer with its usual tiny bell-song.
Wren leaned close. The glass smelled like salt and boiled sugar and a hint of pepper from the harbor cakes. She put her hand to the cold pane and felt something small press against the inside of her palm — a faint, trembling pulse like a trapped moth.
The sound the jellies made at dusk — a single note that floated above the harbor and told the boats which docks were safe — was missing a thread. Wren's stomach went thin with a worry she had not met before. She wrapped her spare scarf tighter and watched the dull jelly. Outside, gulls argued about breakfast. Inside, a silence sat in one tank like a small, careful thing.
"We keep watch, Wren," Maester Lobe said, and his voice was not the slow poem she was used to. It was a line tied tight with worry. "Watch and listen. See what happens at night."