Professor Abel Worthe is brilliant, wealthy, and utterly immoral. He is an expert in a very particular field: The study of fear and death. Using his vast resources, Worthe has transported a collection of haunted houses and paranormal sites to his hidden village. And kidnapped civilians are forced to confront unknown horrors in the chilling name of research. Marcus Holt thought his worst memories were behind him. A veteran of the Vietnam War, this old soldier is haunted by nightmares of brutal conflict. But he’s about to discover that his battle for survival has only just begun.

The dead speak, and one man hears their harrowing cries.... Dan Tate survived a heartbreaking tragedy and is plagued by nightmares of his terrifying ordeal. Withdrawing into an emotionless shell, he has driven away everyone who cared about him. Dan is lost, and utterly alone. Until he hears the voices.... In Coffin Cemetery, the anguished spirits cry out, seeking a way to move on. But Dan isn’t the only one who speaks with the dead. Janet Ladd, a greedy and corrupt medium, also hears their call. She intends to use these tormented souls to fulfill her own petty desires.

When Detective Jacinta Perez calls on retired Marine, Shane Ryan, to look into a bizarre series of deaths, the ghost hunter quickly confirms a supernatural connection to the crimes. Lost souls call out to him, all clamoring for justice to be served. But when Shane’s investigation leads him to a body hidden in the woods, he suddenly finds himself a suspect in the crimes. Framed for murder and with Jacinta getting kidnapped, Shane must use all the help he could get to destroy supernatural evil, once and for all.

Ghost hunter Shane Ryan has cheated death countless times. But death has a funny way of collecting what it’s owed. And when James Moran asks Shane to retrieve a group of deadly spirits and their haunted items, the retired Marine finds himself wading into battle with supernatural evil once more.

Ghost hunter Shane Ryan has never had an easy life. Years of battling paranormal forces and supernatural evil have taken their toll. But the former marine isn’t ready to give up the fight yet. So when a missing girl stirs up memories of an old case, Shane sets out to investigate.

Stefan Korzh continues to unleash his bloodthirsty haunted antiques onto an unsuspecting world. But as his past catches up with him, he discovers that there's a price to pay for his murderous desires. The latest item is an eerily cold, silver class ring that drives its wearer into a frenzy for human flesh. A brutal urge to plunge a knife deep into innocent bystanders is overtaking the residents of Concord, New Hampshire. An unlikely alliance is formed between Ariana Leckie and Victor Daniels on their hunt for Stefan and the collectibles.

Stefan Korzh's desire to destroy the lives of everyone around him knows no bounds. Even as he's hunted by enemies, Stefan shows no signs of slowing down. His deadly collection of antiques continues to spread and help his dreams become reality. Meanwhile, Victor Daniels and Tom Crane have managed to build some resemblance of an ordinary life. They remain more determined than ever in their fight against Stefan and will stop at nothing to put an end to the horrors of the Korzh collection. But life tends to take nasty turns when ghosts are involved

It's business as usual for Stefan Korzh as he continues to send haunted antiques onto unsuspecting buyers. Despite going into hiding, his desire to punish the universe for his own misfortune remains unchecked. Victor Daniels, now more than ever, is focused on grabbing Korzh by the neck and making him feel the full extent of his pain and suffering. But plans change when a suave ghost from the 1940s leaves a trail of dead bodies in his wake. Hank, a sly and charming specter, uses a mahogany-colored radio to reach his victims....

Stefan Korzh is at it again, and while Ivan's deadly ghost has thrown a wrench into his son's plans, the spiteful road to revenge continues. More haunted items from the family's notorious collection are appearing with new owners. Worst of all is a pen possessing an inviting glimmer that can destroy whoever spills its demonic ink. Jeremy Rhinehart and Victor Daniels are in a desperate rush to stop the mayhem, and seem to be headed in the right direction...but somehow, the closer they get, the harder things become.

In back alleys and hellholes across the world, ravaged souls and scarred warriors whisper of the Iron Tournament. A savage game of death, pitting living fighters against caged spirits, all for the amusement of a mysterious audience.