Amethyst Stone has come home to take care of her father's rock shop, Stone's Gems and Minerals, while her father, Nick, recovers from a broken leg. It's not long, however, before things go awry, as the her father's assistant is murdered, and Amy is suspect number one.Amy and her new assistant, Jackson Wolf, have to unravel the tangled clues to find out who killed Carl, and why, as well as protect the shop itself from the Copper Springs town council which would like to see it condemned.As Amy and Jackson dig deeper, they realize that there is a lot more going on than it appears on the surface, and multiple people have a reason to want Carl out of the way. They just have to figure out who actually did it before they become the killer's next victims.