. . until a dog fetches her for its owner, and she is tossed into a bird's nest. A mountain? No, Petra is now an egg! An egg of the world in a world of possibility. Until she's flung into a pond, and becomes an amazing island . . . and, eventually, a little girl's pet rock. What will she be tomorrow? Who knows? But she's a rock, and this is how she rolls!

    He hears bats flying, leaves falling, and children singing, "Trick or Treat!" What can it mean? Find the answer in this sturdy board book edition of the best-selling picture book.