A Mutiny in Time, 2012, 192 lk

Scholastic's next multi-platform mega-event begins here! History is broken, and three kids must travel back in time to set it right!

When best friends Dak Smyth and Sera Froste stumble upon the secret of time travel -- a hand-held device known as the Infinity Ring -- they're swept up in a centuries-long secret war for the fate of mankind. Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course.Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it. First stop: Spain, 1492, where a sailor named Christopher Columbus is about to be thrown overboard in a deadly mutiny!

The Iron Empire, 2014, 192 lk

James Dashner returns to the New York Times bestselling series!

They've sailed on the Santa Maria, defended famous cities from Vikings and Mongols, and come face-to-face with some of the greatest figures in history. Now, at long last, Dak, Sera, and Riq travel back in time to the moment it all began. Their mission: to save the life of young Alexander the Great. But they are not the only time travelers in ancient Greece. An epic battle against their most dangerous foe awaits them . . . and history will be written by the victors.

Fix the past. Save the future. It's now or never!