At an old manor house on a remote Scottish island, six managers of a large corporation arrive for a week-long stay. Within days they will all suffer horrifying deaths and their bodies will never be found. The government assigns the case to Department 18, the special unit created to investigate the supernatural and the paranormal. However this is no mere haunted house. The evil on this island goes back centuries, but its unholy plots and schemes are hardly things of the past. In fact, while the members of Department 18 race to unravel the island’s secrets, the forces of darkness are gathering and preparing to attack.

Department 18: Government agents specializing in the paranormal and associated psychic phenomena, including hauntings, poltergeist activity, demonic possession and other unexplained occurrences. All files highly classified. — They have existed since before man walked the earth. They are the Breathers, a species of vampire-like creatures that feed on human souls. They have evolved over the centuries and now are split into two warring factions. Both are a threat to mankind. As the battle lines are drawn, Robert Carter and Department 18 are caught in the middle. They are all that stands between the two sides and their unsuspecting prey........Us.

Four centuries ago witch hunters killed the seven Yardley sisters. Now Department 18 must battle…the eighth witch! Four hundred years ago six of the seven Yardley sisters—all witches—were systematically hunted down and killed. The seventh lived long enough to give birth to a daughter. Now, centuries later, that daughter has resurfaced in the town of Ravensbridge, more powerful than her mother or aunts ever were. She has honed her powers, can change shape at will, and has only one ambition—to bring her family back from the dead to seek vengeance against the descendants of all who slaughtered them. Ravensbridge once lived in fear of the seven Yardley sisters, but they have yet to experience the terror of…the Eighth Witch.

"The clock is ticking!" In London, Department 18 Chief, Simon Crozier, is brutally stabbed and left for dead. Billionaire businessman Pieter Schroeder has laid his first card in a deadly, high-stakes game, a battle that will pit Department 18 against evils both ancient and modern. As the secret past of Department 18 comes back to haunt the present day, the team s future and Crozier s life hang in the balance when they confront an enemy who is powerful, malevolent and perhaps immortal. "

The hunt is on! Alice Logan has gone missing, and Harry Bailey and Department 18 have been called to help find her. The main suspect is Anton Markos, a satanic cult leader who has a predilection for young women like Alice. Members of Markos’s cult start turning up dead—shredded by what seems to be a wild animal. Is there a madman within the cult? Or is it something far more horrible?Can Department 18 discover the impossible truth and end the spree of murder, insanity and carnage? Or will they become the prey?

In a small village in Japan a thousand or so years ago, the Tashkai discovered how to steal any talent a person might possess. A singer would lose their voice – and at the same time a Tashkai villager would suddenly become an accomplished vocalist. This mysterious thievery continued for centuries, until the Tashkai ventured further afield for victims. Legend says that Buddha had enough of them and decided to punish the entire village – turning them into hideous creatures who survive to this day – relentlessly pursuing more prey. Department 18 – the secret government unit that fights supernatural forces – now attempts to save several people who have become ensnared by the modern Tashkai. Clues lead operatives Carter and Jane to a manor house in the English countryside, where serene surroundings mask the occupants' deadly secrets.