Since escaping from The Ragged Cove and finding herself suspended from the police force, Kiera Hudson is hired by the mysterious Lady Hunt to protect her 16-year-old daughter from a stranger she believes is lurking on the moors. But little does Kiera know that it is she who will need protecting. Arriving at the Hallowed Manor on the desolate Welsh Moors, Kiera soon realises that the vampires she has been seeing are not just the stuff of her nightmares, but are very real - and are closing in.
When 20-year-old police recruit Kiera Hudson is posted to the remote town of The Ragged Cove, her life is changed forever. Investigating a series of horrific murders, grave desecrations, and missing persons, with her unique ability of "seeing", Kiera soon realizes her life is in danger. But when Kiera falls in love with police officer Luke Bishop, not only is her mind and her heart opened to a terrifying new world, she comes to suspect that Luke might be involved in the killings.
With the Skin-walkers closing in, Kiera and her friends flee across the English countryside. Learning Potter has been keeping secrets from her, Kiera makes the painful decision to split from the group and leave her friends behind to go in search of her father. Can Kiera reach him before she turns into a statue, like the ones that appear to be following her? Desperate to win back Kiera's trust, and fearing she is walking straight into a trap, Potter goes after her.
When Potter disappears from Hallowed Manor for 24 hours, he goes in search of the only person he thinks will be able to give him answers as to why the world has been pushed. That person is his first love, Sophie. But Sophie has been pushed, too, and is running for her life. In a world where wolves live among humans, Potter must save Sophie while trying to search for answers. During his search, he discovers that some things are best left secret.
When Kiera and her friends return from the dead, they soon realize that the world is not the same - it has been pushed. Returning to Hallowed Manor, Kiera soon learns that it's not only the world that has changed, but she is changing, too. Asked to help solve the murder of missing school teacher Emily Clarke, Kiera and her friends soon discover that they are now living in a world where humans and wolves live together, sharing a fragile peace.
Deep in a forest glade, the fey folk dance with a young human child. Their kinship is the fabric of Isidore's childhood. But when her mother dies and her world darkens with sorrow, Isidore finds her belief in the fey folk wavering. The love of her new step-sister, Blessing, proves an unexpected gift in her time of need. Yet even as their friendship blooms, Isidore begins to see that Blessing is everything she herself has always wanted to be, but is not. Jealousy grips Isidore as she watches this beautiful new sister steal away all she holds dear.
With nowhere else to run but The Hollows, Kiera Hudson finds herself in a world like no other. Entrusted with a secret, she has to make her way to the mysterious Lighthouse set hundreds of miles beneath the Earth. As she makes her journey, Kiera's companions are being murdered one by one. Is the killer amongst them - and it is the illustrious Elias Munn?
As Potter leaves Kiera and his friends to go in search of Luke, he makes a lonely journey across the snow-capped mountains of Cumbria. Haunted by the death of Murphy, the capture of Luke and the love that he feels for Kiera, Potter reflects on his past life and the disturbing events that took place at the Wolf House. He remembers his first encounter with the werewolves, how he had to save Murphy and Luke, and capture the serial killer who was murdering the children from the town of Little Hope.
Kiera awakens to find herself imprisoned. Experiencing horrific nightmares and visions, she slowly realizes that she has been subjected to a series of sinister tests and operations. Now addicted to blood, and in pain, Kiera knows that if she is to survive, she will need to escape from her caged cell. More questions arise: Who is the secretive werewolf visiting her at night - and can she trust him? Where are her friends, and why hasn't Potter come to her rescue, as he promised?
In search of Kayla and on the run, Kiera and her friends make a race against time across the Cumbria Mountains. With vampires predicting their every move, the trust among Kiera and her friends starts to waver. From the desolate monastery set high in the mountains, to the mysterious lake and the caves beneath the fountain, Kiera must discover the connection between the vampires and her mother, Isidor, and Kayla - all while trying to resolve her feelings for Potter and Luke.