At last the answer to that age old are dragons lactose intolerant? The last thing Sybil expects is to be accused of murder at a cheese festival. With her behind bars, it's up to the dragon Riastel to investigate. Too bad he has no idea how to talk to humans. The arrival of Sybil's former lover hampers his meager efforts. As the two men clash over her affections, the festival is terrorized by a new threat. One that's been aging for far too long.