Meddling Kids by Edgar Cantero

1990. The teen detectives once known as the Blyton Summer Detective Club (of Blyton Hills, a small mining town in the Zoinx River Valley in Oregon) are all grown up and haven’t seen each other since their fateful, final case in 1977. Andy, the tomboy, is twenty-five and on the run, wanted in at least two states. Kerri, one-time kid genius and budding biologist, is bartending in New York, working on a serious drinking problem. At least she’s got Tim, an excitable Weimaraner descended from the original canine member of the team. Nate, the horror nerd, has spent the last thirteen years in and out of mental health institutions, and currently resides in an asylum in Arkham, Massachusetts. The only friend he still sees is Peter, the handsome jock turned movie star. The problem is, Peter’s been dead for years.

The time has come to uncover the source of their nightmares and return to where it all began in 1977. This time, it better not be a man in a mask. The real monsters are waiting.