Join Jack and Annie on a wild adventure to a panda reserve in China! This #1 bestselling series, now with new covers and an easy-to-use numbering system, celebrates 25 years of magical time-traveling. Magic Tree House Merlin Mission #20 takes readers on a thrilling journey through history, just in time to experience a massive earthquake. A must-read for every kid!

From Penguin Random House, for ages 7 and up