Congratulations! You are invited to participate in a very special once-in-a-lifetime experience. Please do not share this invitation or discuss it with anyone. In New York Times bestselling author Dan Gutman's all-new series, which blends fascinating real history with an action-packed and hilarious adventure, four very different kids are picked by a mysterious billionaire to travel through time and photograph some of history's most important events. This time, the four friends are headed to 1863 to catch Abraham Lincoln delivering his famous Gettysburg Address. They'll have to work together to ask the right questions, meet the right people, and capture the right moment. And most important—not get caught! Back matter separating fact from fiction and real black-and-white photographs make Flashback Four the perfect mix of true history and uproarious fun.

The eccentric billionaire Miss Zandergoth is very disappointed with the Flashback Four. Luke, Isabel, David, and Julia did not come back from their first time-traveling adventure with a photograph of Abe Lincoln delivering the famous Gettysburg Address for Miss Z’s rare-photograph collection. But she’s willing to give the Flashback Four another chance, by sending them on their most dangerous trip yet—to the deck of the doomed Titanic, for a shot of the sinking ship. In this second adventure in bestselling author Dan Gutman’s Flashback Four series, Luke, Julia, David, and Isabel embark on a journey to capture one of the most exciting and tragic moments in history. Along the way they will meet and learn about some of the most famous real-life passengers aboard the ship, including millionaire John Jacob Astor and captain Edward John Smith. Historical photographs, combined with Dan’s signature mix of hilarity and action, make this a time-travelling adventure of titanic proportions! Racing against time and rising waters, the four kids must work together to get the perfect shot and—most important—to get back home!

Eccentric billionaire Miss Z is sending Luke, Julia, David, and Isabel on another mission back in time to capture one of history’s most important events. This time, the Flashback Four are headed to AD 79 to photograph the eruption of Mount Vesuvius! Can the Flashback Four get their photo and get back home before they become ancient history? With real photographs from Pompeii to help put young readers right in the action, plus back matter that separates fact from fiction, The Pompeii Disaster tells the story of one of the world’s most devastating natural disasters like you’ve never seen it before.

In this jaw-dropping final installment of New York Times bestselling author Dan Gutman's action-packed series, four risk-taking friends travel back in time to record the most infamous duel in American history. Billionaire Miss Z might be out of the picture, but a top-secret agency wants to send Luke, Julia, David, and Isabel on one final mission. This time, the Flashback Four are headed to Weehawken, New Jersey—in 1804—to videotape the fateful duel between Alexander Hamilton and Aaron Burr. But once they arrive, the team faces a question of historic proportions: Should they capture the tragic details of the duel or try to change them? The Hamilton-Burr Duel tells the story of one of history's fiercest rivalries from a fun and fresh new angle.