Decrypting the Cache, The Geocaching Mysteries, Vol.1

Thirteen-year-old Erin jumps at any chance to go geocaching — using GPS technology to locate hidden caches. But family outings seem as likely as finding a cache in an active volcano after Erin’s unemployed dad relocates to another state. When her parents then stop talking to each other and they lose their house, Erin feels about as secure as a fault line during an earthquake.

Setting out with her friend Dev, Erin discovers a mysterious note inside a geocache. Convinced it leads to valuables ...