It's an Enigma!

Ten houseguests, trapped on an isolated island, are the prey of a diabolical killer.

In nineteenth-century New York City, Jo struggles against gender and class to solve the mystery of her father's supposed suicide.

Peter Blankman battles panic attacks as he tries to find his missing twin and those who nearly assassinated his mother.

Zoe moves from Brooklyn to upstate New York where she meets Philip and investigates the disappearance of a local girl.

Stevie Bell has an ambitious plan: she will solve her famous private school's infamous cold case during her first year.

In this mystery-adventure set in the 1930s, a young man desperately searches for his identity.

As her mother prepares to be a contestant on a game show, Miranda tries to make sense of mysterious notes.

After fourteen-year-old Ozzy's scientist parents are kidnapped, Ozzy's only help may be a classified ad that says "Wizard for hire."