Bryce and Ashley Timberline's friend Jeff is dying, and his collection of autographed sports memorabilia has disappeared. While Bryce and Jeff attempt a 200-mile bike hike for cancer research, Ashley does a little research of her own.

Can they track down the missing memorabilia before it's too late?

Watch out The Timberline twins are on the loose. Bryce and Ashley are ATV-riding tweens from Colorado who unearth action-packed mystery and adventure wherever they go. From clearing the name of a local miscreant to thwarting a gold-stealing heist, the twins' growing faith and the strong example of their parents guide them through even the most life-threatening situations. With the trademark page-turner style used by Jerry Jenkins and Chris Fabry in the Left Behind: The Kids series, these fast-paced books will keep even reluctant readers on the edge of their seats. Readers will definitely be hooked Perfect for ages 8-12.