Primed by their favorite video war game pitting Celts against Romans, Mikey and Kyler are convinced that they’ve seen a real live Celtic warrior. Has the Celt time-traveled as part of a secret defense project? In tracking him down, the boys solve the biggest mystery of their lives.

“THE LOST CELT is the best kind of children’s adventure story, full of taut suspense, riveting action, and, most importantly, humor and heart. Not to be missed.”
—Katherine Applegate
Author of THE ONE AND ONLY IVAN
Winner of the 2013 Newbery Medal

“Mikey is trying to solve the most amazing riddle of his life in this fun ride with rich, real characters and high stakes.”
—Eric Elfman
Co-author of TESLA’S ATTIC and EDISON’S ALLEY

“A. E. Conran mixes schoolyard drama, family interactions, and heroes’ tales in a sensitive book that leaves us cheering for veterans of all generations and their families.”
—Suzanne Morgan Williams
Author of BULL RIDER