An unforgettable journey through the stars, to the very heart of what makes us human. The incredible Newbery Medal-winning novel from Donna Barba Higuera. "Gripping in its twists and turns, and moving in its themes - truly a beautiful cuento." New York Times Habia una vez . . . There lived a girl named Petra Pena, who wanted nothing more than to be a storyteller, like her abuelita. But Petra's world is ending. Earth will soon be destroyed by a comet, and only a few hundred scientists and their c ...