When demons begin appearing on Earth unpredictably, foreshadowing a cataclysmic breakdown of their magic, Artemis and his friends face a new foe--a twelve-year-old girl whose intellect just might match Artemis's own--as they try to prevent a catastrophe.

When an outsider appears in the ThunderClan's midst, it drives the Clans further apart and as tension mounts they must decide who they can trust before it is too late.

The time has come for Max, Fang, Iggy, Nudge, Gasman, and Angel to face their ultimate enemy and, despite many obstacles, try to save the world from a sinister plan to re-engineer a select population into a scientifically superior master race.

"Nova's double life is about to get a lot more complicated: As Insomnia, she is a full-fledged member of the Renegades, a syndicate of powerful and beloved superheroes. She works with Adrian's patrol unit to protect the weak and maintain order in Gatlon City. As Nightmare, she is an Anarchist--a group of villains who are determined to destroy the Renegades. Nova wants vengeance against the so-called heroes who once failed her when she needed them...

Firestar's three grandchildren, Hollypaw, Lionpaw, and Jaypaw, struggle to restore faith in StarClan as Sol works to tear apart the bonds between Clans and turn them away from their warrior ancestors.

Hal, his Brotherband crew, and the Ranger Gilan have freed the twelve Araluens sold into slavery. Returning to Araluen, Gilan is given a new mission by King Duncan: protect his daughter's life. Princess Cassandra has survived one attempt on her life already, and now whispers of a second attempt have reached the kingdom. A deadly sect known as the Scorpion Cult is thought to be behind the assassination threat.

In this prequel to the Ranger's Apprentice series, Halt and Crowley travel north seeking Prince Duncan's royal warrant to stop Morgrath from corrupting the Corps, but if they are to prevent a coup that is nearing success, the young Rangers will have to tread a dangerous path toward the annual tournament at Gorlan.

Caught in a massive storm at sea, the Brotherband crew wash up on the shores of a distant land where they are welcomed by a peaceful tribe that is being invaded by warlike rivals.

Teenaged criminal mastermind Artemis Fowl must save the underwater fairy metropolis of Atlantis from danger, while battling a psychological affliction known as the Atlantis Complex.

When Firestar's grandchildren, Hollyleaf, Lionblaze, and Jay feather, finally discover who their true parents are, there are dire conseqyences for ThunderClan and the warrior code.