Harley Hill is back with another mystery to solve! This time, her sleuthing skills are needed in the US when she's invited to the US to help as a co-host of her friend's reality TV show: Ghost or Not?All is going well until the day of shooting. One of the other hosts is found dead in the museum attached to an old abandoned Mine. With stories of the place being haunted, it's not long before the cast and crew start wondering whether the stories are true.Things take a turn for the worse when the local police takeover the investigation and, in Harley's opinion, are not doing enough to solve the murder. Despite being the outsider, Harley uses her charms and skills to examine the case herself, and along the way find out whether or not the old abandoned mine is populated by the spirits of the dead.Harley Hill 6 is a cozy puzzle with clues that the reader can follow along with. This book can be read even if you haven't read a Harley Hill book before. It's a complete, standalone mystery that is fully resolved at the end.