The Impossible Gladiator

In the third installment of the acclaimed Time Keys series by M. G. Leonard, young adventurers Sim, Jeopardy, and Nelson find themselves caught up in a mysterious disappearance during a holiday in Rome. Their quest takes them through secret time doors to the ancient and perilous Colosseum in search of a missing illusionist, blending action, history, and mystery. The book can be enjoyed as a standalone or as part of the series, acclaimed for its fast-paced and thrilling storytelling that brings historical settings vividly to life.