作者：Mary Pope Osborne 字数：1.1万字 出版社：Random House Children's Books

When Jack and Annie got back from their adventure in Magic Tree House Merlin Mission #19: Abe Lincoln at Last!, they had lots of questions. What was it like to grow up in a log cabin? How did Lincoln become president? What was his family like? Why did the US fight the Civil War? Find out the answers to these questions and more as Jack and Annie track the facts.

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