Percy Jackson fans and readers who have outgrown the Magic Tree House series will embrace this humorous time-travel adventure to Abe Lincoln's White House and the Battle of Gettysburg in 1863. Mel, Bev, and Brandon - the Left Behinds - are at it again. When the iTime app on their phones sends them to Washington, D.C., in 1863, they find themselves smack dab in the middle of the Civil War. They sit in on a seance with First Lady Mary Todd Lincoln and are shown every inch of the White House by Tad, the youngest Lincoln. When they drop in on the president himself, Abe Lincoln, he is preoccupied with the fateful battle at Gettysburg, which is just under way. The kids receive their marching orders - they must somehow travel to Gettysburg from D.C., make sure what's supposed to happen does happen, save the Union, and be home in time for dinner. No biggie. After all, it's only the entire future of the country at stake. This sequel to The iPhone That Saved George Washington includes an author's note and information on Civil War reenactments and living history sites around the nation. Praise for The Left Behinds: The iPhone That Saved George Washingtono "This is Magic Tree House all grown up, and kids who once loved that time travel conceit will be delighted all over again." - The Bulletin of the Center for Children's Bookso "A skillful blend of humor, history, mystery, and adventure makes for a fun, fast-paced tale that will leave readers a little wiser." - School Library Journalo "A new twist on time travel." - Kirkus Reviewso "Readers will charge through these super-short chapters like a Revolutionary soldier on the run." - BookPage