0The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system!

Are you ready for a presidential adventure? Jack and Annie are! They are whisked back to Washington, D.C., in 1861. Jack can't wait to meet Abraham Lincoln himself! But the new president is too busy to see them, as he is desperately trying to save a nation in crisis. It's a race against time as Jack and Annie try to aid a president and a troubled nation!

Formerly numbered as Magic Tree House #47, the title of this book is now Magic Tree House Merlin Mission #19: Abe Lincoln at Last!

Did you know that there's a Magic Tree House book for every kid?

Magic Tree House: Adventures with Jack and Annie, perfect for readers who are just beginning chapter books
Merlin Missions: More challenging adventures for the experienced reader
Super Edition: A longer and more dangerous adventure
Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures

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