"In New York Times bestselling author Dan Gutman's all-new series, which blends fascinating real history with an action-packed 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, Luke, Julia, David, and Isabel are headed to the deck of the doomed Titanic. Their mission? Capture a shot of the sinking ship, then come right back. The only...

"Ashley can't get comfortable in her family's new apartment.  Sometimes she hears a child crying, though no one is near, and everything she does--especially going into the garden or playing with a mysterious white cat--upsets the irritable landlady.  The discovery of an old doll buried in the forbidden garden starts Ashley on a quest to find out who it belonged to, and why it was buried.  The landlady claims the doll is hers.  But an eerie encounter...

"Mason and Ty were once the very best of friends, like two nerdy sides of the same coin...until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...

The reader follows Waldo as he travels through different time periods in history and must try to find him in the illustrations of some of the crowded events in which he participates.

Two very hungry dinosaurs discover a time machine and are instantly transported to America in 2018, where they are delighted to find themselves surrounded by food (including pizza and doughnuts), but soon less excited to find themselves surrounded by policemen with guns--so they escape to the time machine, not knowing where it will take them next.

"Ready to answer His call?" Mikey asked. With all the courage she could muster, Maggie nodded and stepped through the doorway alongside her guardian angel. Maggie Murphy is in big trouble. She hit her little brother back. As many kids would, she thinks it's unfair that she is the one in trouble when she didn't start it. While trapped in timeout, questioning how life could be so unfair, Maggie is visited by her guardian angel, Mikey, who appears to...

"The magic tree house has taken Jack and Annie back in time to England in 1944. England is fighting for its life in World War II. Before long, Jack and Annie find themselves parachuting into Normandy, France, behind enemy lines. The date is June 5. Will the brave brother and sister team be able to make a difference during one of the darkest times in history?"--

"Miss Z, a mysterious billionaire and a collector of rare photographs, is sending her four recruits back in time on a mission to capture, for the first time, one of the most important moments in American history--Abraham Lincoln giving his famous Gettysburg address"--

"The magic tree house whisks Jack and Annie to Africa where they must use magic to save a rhino and her baby from poachers"--

"Their magic tree house takes Jack and Annie back to the Wild West, where they experience excitement and danger and try to solve a riddle"--Title verso page.