Everything changes for San Bernardino teenage suburbanite Jim Sturges when a 45-year old mystery resurfaces, threatening the lives of everyone in his seemingly sleepy town. Soon Jim has to team up with a band of unlikely (and some un-human) heroes to battle the monsters he never knew existed.

"Scarlett McCain is a shoot-first ask-questions-later kind of outlaw. She scrapes by on bank heists, her wits - and never looking back. She's on the run from her latest crime when she comes across Albert Browne. He is the sole survivor of a horrific accident, and against her better judgment, Scarlett agrees to guide him to safety. This is a mistake. Soon there are men with dogs and guns and explosives hot on their heels. Scarlett's used to being...

Ever since a car accident killed her father and gave her a severe concussion, high school junior Lisa's been plagued by nightmares and hallucinations, and when she accepts a babysitting job in hopes it will banish the disturbing images, she faces new terror as she begins to question exactly who--or what--she's babysitting.

Thirteen-year-old Conor awakens one night to find a monster outside his bedroom window, but not the one from the recurring nightmare that began when his mother became ill--an ancient, wild creature that wants him to face truth and loss.

Fifteen-year-old Izzy, who comes from a long line of monster hunters, investigates a series of hauntings at her new high school.

Now united, the three descendants of Medusa must find the gate between the human and monster world to achieve their destiny.

Teen triplets Gretchen, Grace, and Greer, descendants of Medusa, continue to battle the monsters who walk the streets of San Francisco, unseen by humans, but realize they must enter the abyss if they are to protect their loved ones--and their world.