On a full moon night, Olive, Kuba, and Lena spot an island in the middle of Emerald Lake that adults insist does not exist. By dawn, they are rowing toward its glowing shore.
At the edge of Green Glade lay Emerald Lake, a wide sheet of dark water that flashed silver when the sun touched it. On summer evenings, the air smelled of mint from the reeds and warm grass from the banks, and the whole town seemed to slow down and listen.
Olive, Kuba, and Lena met there almost every afternoon, on the little wooden footbridge that crossed the narrowest part of the shore. It was their headquarters, their map table, their lookout point. Olive was the one who always spotted trouble first, Kuba was the one who never backed away from a dare, and Lena could make sense of almost anything if she had enough time and a pencil.
That evening, the moon was already bright when Lena suddenly leaned over the railing and froze.
“Look,” she whispered.
Out on the water, where there had only been ripples a moment before, a patch of land was rising out of the lake. Not a big island. Just a small, dark shape at first, then a curve of trees, then a narrow strip of shore catching the moonlight like a silver edge.
Olive blinked hard and reached for her transparent binoculars. “That wasn’t there yesterday.”
“It wasn’t there an hour ago,” Kuba said.
For a moment none of them spoke. The lake looked different now, as if it had been holding its breath. The island sat in the middle of the water so calmly that it seemed impossible. Green Glade had legends about strange lights, singing reeds, and a place that appeared only when the moon was full. But legends were for little kids and old gossip, and adults always said the same thing: there was no island in Emerald Lake.
Yet there it was.
Lena lowered her voice. “If it shows up tonight, maybe it won’t be there in the morning.”
Kuba gave a quick grin, though his eyes were fixed on the dark shape across the water. “Then we’d better not waste time.”
They hurried home under the rising moon, each one carrying a different piece of their plan. Kuba found his grandfather’s old boat behind the shed, dusty but sound. Olive brought a flashlight with a strong beam and a pocketknife, just in case. Lena stuffed a notebook and a pencil into her bag, because if anything strange happened, she wanted proof.
By the time they pushed the boat into the water, the shore behind them had gone quiet. The houses of Green Glade were only dim squares of light now, and the lake stretched ahead like a wide black mirror. The island waited in the middle, small and silent, with no path, no dock, and no sign that anyone had ever visited it.
Kuba took the oars first. The boat slid forward with a soft creak, cutting a silver line through the water. At once, the air changed. A thin mist drifted up from the lake, curling around their knees and swallowing the moonlight in pale ribbons. The farther they went, the quieter everything became. Even the splash of the oars sounded strange, as if the lake were listening.
Olive stared ahead. The trees on the island were not ordinary trees. Their branches twisted too sharply, and their leaves seemed darker than the night around them. Lena scribbled a quick note, but her hand trembled when a low sound rolled across the water. It was not quite a call, not quite a hum. It came from the island.
Then the mist thinned for a second.
A yellow light flickered among the trees.
Kuba stopped rowing so suddenly that the boat rocked. The three friends stared. The light glowed again, steady this time, and in front of it, something moved between the trunks. A shape. Tall enough to make a shadow. Still enough to make their skin prickle.
Olive tightened her grip on the flashlight. “Did you see that?”
Lena did not answer. She was already looking at the shore, where the water had begun to ripple as if something underneath it were coming closer.
And from the island, just beyond the glowing light, something shifted in the dark and turned toward them.