Meg Langslow is spending the summer at the Biscuit Mountain Craft Center, helping her grandmother Cordelia run the studios. But someone is committing acts of vandalism, threatening to ruin the newly-opened center's reputation. Is it the work of a rival center? Have the developers who want to build a resort atop Biscuit Mountain found a new tactic to pressure Cordelia into selling? Or is the real target Meg's grandfather?