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.
Used availability for Sigmund Brouwer's Hammerhead
November 2001 : USA Turtleback
April 2001 : USA Library Binding
April 2001 : USA Mass Market Paperback