Shelby Crusado enlists her friend Joey in a quest to save Scottsdale, Arizona, and the world, when she discovers her teacher--who she long believed to be a robot--is one of a group of aliens intent on taking over the planet.
Hannah Bayford's family has just moved into a beautiful, old home in Concord, New Hampshire. There Hannah sees and hears mysterious things and comes to believe her home is haunted.
Erica Falkner is alarmed to see dozens of mysterious coyotes appearing in her small Connecticut neighborhood. Erica learns that an ancient curse is the cause of the coyotes and that her town is in danger.
Danielle Reed discovers the reason why her new home makes her uneasy when she enters a boarded-up door and finds a place where ogres are plotting to take over Ohio in the first step of a much bigger plan.
Justin and his friend Caitlin rush to figure out what is going on when a mild hurricane passes through the Tampa Bay area of Florida and leaves behind a murky fog that hides bizarre and dangerous creatures.
