High school sophomore Nora has always been very cautious in her relationships, but when Patch, who has a dark side she can sense, enrolls at her school, she is mysteriously and strongly drawn to him, despite warnings from her best friend, the school counselor, and her own instincts.

Gabe and his friends are challenged to use the powers of the five elements to destroy Arcadia and prevent a sinister cult from tearing down the barrier between the worlds.

After fifteen-year-old Chloe starts seeing ghosts and is sent to Lyle House, a mysterious group home for mentally disturbed teenagers, she soon discovers that neither Lyle House nor its inhabitants are exactly what they seem, and that she and her new friends are in danger.

Meg Finn is in trouble. She's dead, but not at peace--she's in limbo, her good deeds perfectly balanced against her bad deeds; Heaven or Hell wait, a tip of the scale away. So she's back on Earth trying to tip the scale to the good by helping her last victim, and her former "partner" is also back, trying to force her to tip the scale to the bad.

To stop the evil corporation Nightrise from unleashing its devastating power around the globe, fifteen-year-old Matt and three other Gatekeepers travel to Hong Kong to find Scarlet, the final Gatekeeper, whose fate is inextricably joined to their own.

Apprentice Tom and the Spook for whom he works flee to Ireland, where a powerful witch has joined forces with the dark mages trying to call forth ancient powers to destroy Tom.

Twelve-year-old Nat, with help from family, friends, and his "pet" Woody, a wolf that turns into a boy, must face werewolves that have been altered as part of a dastardly plan.

While in the mystical realms of the gods along with Numair, Daine learns the secrets of her past and the implications for her future as she and Numair are compelled to return to the mortal world of Tortall to help fight against the immortals.

Tom is reunited with his mother and must return to Greece to face a new and terrible threat from the dark forces, and a momentous decision must be made, causing a serious rift between Tom and the Spook that threatens to separate them forever.

Serena, a moon goddess who has the special gift of reading minds, is torn between joining the dark force of the evil Atrox and staying with her friends, the Daughters of the Moon.