Book #2 in the Geocache Club series for lower middle grade readers, the mystery is expanded as new geocaches and friendships are launched right at home and off into space.

Layton Clark thought his treasure hunting days with Sherry would never end, but then they ran out of geocaches. When the school's new Geocache Club decides to create a geocache hiking trail, he's not sure it will be enough to bring back the adventure.

But then he stumbles upon more hidden relics marked with the mysterious initials 'RBT'--the same initials that led them on their unforgettable experiences in Prairie Springs. As new geocaches pop up around town, Layton and Sherry retrace the path of the hidden treasure, all while Layton struggles with a new fear--losing his best friend to the very club they created.

With a century-old mystery still looming over him, a growing collection of lost artifacts, and a friendship at a fork in the road, Layton must decide what's worth holding on to, and what's better left in the past.