Pip was a small mint-green unicorn with a very special horn. Most of the time it looked almost plain — pale and quiet, barely glowing. Her twin sister Rosie had a horn that blazed every colour all at once, bright as a jar of boiled sweets. But tonight, Pip had the important job.
Old Fernwhistle the tortoise had pressed a carefully folded flower-petal note into Pip's mouth, very gently. "The silver moth must know where to fly," he said, blinking his slow amber eyes. "The lantern flowers will close before midnight if she doesn't light them." Pip held the note so carefully her jaw began to ache.
The petal-path wound through tall grass that smelled of clover and something cooler underneath — damp earth just beginning to remember nighttime. The last light sat low and golden on the seed-heads, making each one glow like a tiny lamp of its own. Pip stepped slowly. She did not want to drop the note.
The path curved left around a blackberry thicket, then right past a cluster of sleeping daisies, then up a long gentle slope toward the dark shape of the old apple tree. Pip could hear her own hooves — soft, soft, soft on the petal-path — and somewhere far above, the first cricket starting up.
She nearly stepped on him before she saw him.
A small snail sat directly in the middle of the path. His eyes — both of them, on their little stalks — were squeezed completely shut. He had pulled himself as flat as a snail can manage, which is not very flat at all. He seemed to believe, with great confidence, that he was invisible.
Pip stopped. Careful, careful, careful. She set the note down on a flat stone, very precisely, and waited.
She waited quite a long time. A moth-wing brushed past her ear. A single apple fell somewhere in the dark grass with a small, private thump. The cricket changed its tune. And still the snail kept his eyes shut.
So Pip leaned down close and whispered. Not a word — just a breath, warm and green-smelling, the way breath does when you've been walking through clover.
One eye opened. Just one. The snail looked at Pip's horn, which had begun to glow the faintest, softest green — the colour of pondweed in shallow water. He considered this for a moment. Then, with enormous dignity, he turned himself around and shuffled to the very edge of the path, leaving a trail that caught the last light like a silver thread.
Pip picked up the note. Careful, careful, careful.
At the top of Clover Hill, the silver moth was waiting on a curled fern frond, her wings folded flat. She took the petal-note in both front legs, tilted it toward the rising moon, and read it. Then she nodded once, and flew.
And then — the lantern flowers opened.
It happened in a long slow wave across the whole meadow below, one colour blooming after another: gold, then rose, then a blue so pale it was almost white, then violet, then a green exactly the shade of Pip's own coat. And as each colour opened, Pip's horn caught it — one stripe appearing, then another, then another — until her whole horn shimmered with a rainbow so quiet it looked like a secret.
She walked home through the lit meadow, her hooves leaving small dark prints in the dew.
Rosie was already curled in their sleeping-spot, one ear twitching slowly. Pip tucked herself in close, and their horns touched — Rosie's bright colours all gone dim, Pip's rainbow fading back to pale. Behind them, the lantern flowers glowed steady and still across the hill, and the silver moth moved silently between them, lighting each one, one by one.
