Dark Day in the Deep Sea

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new easy-to-use numbering system!<br><br> The magic tree house leads Jack and Annie to a tiny deserted island in the middle of the ocean. The brother and sister team are soon rescued by a ship of explorers and scientists who are looking for&#133;a sea monster!<br><br>Formerly numbered as Magic Tree House #39 the title of this book is now Magic Tree House Merlin Mission #11: <i>Dark Day in the Deep Sea</i>.<br><br> Did you know that there&#146;s a Magic Tree House book for every kid?<br><br> Magic Tree House: Adventures with Jack and Annie perfect for readers who are just beginning chapter books<br> <b>Merlin Missions: More challenging adventures for the experienced reader</b><br> Super Edition: A longer and more dangerous adventure<br> Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures