Evil has been unleashed on the world and only five children - with special powers - can save it. Matt and the other three desperately need to find Scar, the final gatekeeper, who has been trapped in Hong Kong, where puddles of water turn into puddles of blood, where ghosts, demons and hideous creatures stalk the streets. Matt has no choice but to follow her. Now, both imprisoned, their only hope of survival is to reach a secret door in the Man Ho temple. But even if Scar can find her psychic power, it may already be too late.

After his experiences at Raven's Gate, 14-year-old Matt Freeman thinks his days of battling evil are over. But he is pulled into another horrifying adventure when he discovers a second gate exists. Matt and his friend Richard travel to Peru and, assisted by a secret organisation known as the Nexus, follow a series of clues to the gate's whereabouts. But there is a traitor in the Nexus.... Richard is kidnapped. Matt manages to escape with the help of Pedro, a local boy.

Nevada, USA. Fourteen-year-old twins Jamie and Scott Tyler are performing a mind-reading act in a dingy theatre. But when a sinister multinational corporation, Nightrise, kidnaps Scott, Jamie is left alone – and wanted for murder. He becomes embroiled in a corrupt presidential campaign and breaks into the American prison system before being propelled 10,000 years into the past, where he encounters the other Gatekeepers and witnesses the creation of Raven's Gate – and the first fateful battle against the Old Ones. 

Matt has always known he has unusual powers. Raised in foster care, he is sent to Yorkshire on a rehabilitation programme, only to find himself in the midst of sinister goings-on. Matt investigates and uncovers a terrible secret - eight guardians are protecting the world from the Old Ones, beings banished long ago by five children. But devil worshippers want to let the Old Ones back in....

Retired publisher Susan Ryeland is living the good life. She is running a small hotel on a Greek island with her long-term boyfriend, Andreas. It should be everything she's always wanted - but is it? She's exhausted with the responsibilities of making everything work on an island where nothing ever does, and truth be told she's beginning to miss her old life in London.