When Luke, Isabel, David, and Julia all receive mysterious letters inviting them to participate in "a very special, once-in-a-lifetime experience," they have no idea that the experience involves time travel! In Dan Gutman's all-new series, which blends fascinating real history with an action-packed and hilarious adventure, these four very different kids are picked by a mysterious billionaire, Miss Z, to travel through time and photograph some of history's most important events. This time, they're headed to 1863 to catch Abraham Lincoln delivering his famous Gettysburg Address.



With Dan Gutman's signature mix of fascinating real history, laugh-out-loud humor, and page-turning adventure, readers will be racing to the end. And while the four new friends narrowly miss their photo finish, the next book will find them on the deck of the doomed Titanic for another trip through time.