Books like Darkness Wakes by Tim Waggoner

In a snow‑blinded city, a sudden blizzard halts daily life and brings forth an unimaginable darkness that threatens to consume everything.

Elisabeta Trigovise, a centuries‑old woman captured and tormented, must confront her past and the dangerous allure of her lifemate, Ferro Arany, while a vampire’s attempt to reclaim her threatens their fragile bond.

In the Florida hamlet of Villejeune, a relentless dark force haunts an eerie swamp. Returning Andersons discover the town’s gruesome rituals to appease a hidden spirit.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

When six college friends play a Ouija board at a party, they summon a restless spirit who lures them to a mountain hideaway with promises of hidden treasure, but the danger that awaits may be far deadlier than they imagined.