Paperback. Good used condition. Some cover/page wear. From the publisher: “ack and Annie travel back in time to a desert in the Middle East. There they meet a Bedouin tribe and learn about the way that they live. From camel rides and oases to ancient writings and dangerous sandstorms, here's another Magic Tree House filled with all the mystery, history, magic, and old-fashioned adventure that kids love to read about. Formerly numbered as Magic Tree House #34, the title of this book is now Magic Tree House Merlin Mission #6: Season of the Sandstorms.”