It was a square house, with four windows and a door, like a child's crayon drawing. The upper windows were open and gauzy white curtains lifted and fell back with each breath of wind.
A man carrying a faded rucksack was passing the house when he noticed the door was ajar. He looked around and, seeing no-one, he walked up to it, knocked, hesitated, and then gave it a nudge. The door swung open to reveal a room full of light. On each of the four walls was a tall, wide mirror. Walking in he found himself surrounded by his own, surprisingly grimy, image at every turn. He bent his head and shuffled back towards the door. It must have been the wind that blew it shut.
That was when the colours began to swirl in the mirrors, flame colours, reds and ambers, with flashes of blue, streaming out into the room where the figure of a girl formed. She was dark-eyed and slight, and reminded the man of pictures of elves in a book he'd read as a child. He gazed at her, and she stared back at him.
He was a homeless man: no-one would miss him.