Will Tyce learn what he needs to know in time?

A deadly comet catapults toward Mars. Only one thing can break up the comet before it does damage: the new Hammerhead torpedo. Tyce Sanders only has two weeks to master it . . . and someone’s trying to stop him. In this exciting, fast-paced series that even reluctant readers will love, Tyce not only uncovers this mystery but also learns more about the power of God’s love.

Book 4 of the Mars Diaries series.