Zosia likes the night and the stars above the house. She has a small telescope and a brave dog, Bubble. One evening the garden suddenly became bright. A silver egg landed on the grass, silent. A flap slipped out of the egg and it beeped. The bubble growled and Zosia held her breath. A panel of coloured dots flashed inside. Zosia whispered: "Hello? Who lives here?" A small robot emerged from the dark interior. His name was Tiko and he nodded. In a thin voice he said: "I am looking for a brave friend." "The flight will take a while. You need a map of Earth." Zosia opened her backpack and took out her school atlas. A bright map and a tunnel appeared on the wall. Suddenly the panel beeped and flashed red. The ship's voice said: "A meteor shower is approaching." The metal hatch trembled and creaked slightly. Leaves and dust rustled in the garden. Tiko grabbed Zosia's hand. "We have to go now." A light shone behind the clapboard, like a new sun. Quiet footsteps sounded from the darkness just outside. Zosia lifted her foot over the first step....