Twelve-year-old Luna loves the nighttime more than anything else. It's when no one gives her "that look" about the half mask she has to wear while healing from a disfiguring car accident. It's also the perfect time to sit outside and draw what she sees—like the boy and girl from the new family next door that zip out of the window in a zeppelin and up to the stars. At first, she thinks she's dreaming. But one night they catch her watching. Now Luna spends her nights on adventures with them, as they clean full moons, arrange constellations, and catch jars of stardust. She even gets to make a wish on a shooting star they catch. But Luna learns that no wish is strong enough to erase the past—as much as she may hope to.