Books like The dark monk by Oliver Pötzsch

In an elite New England college, a charismatic classics professor lures a group of eccentric students into obsessive study, leading them from intellectual curiosity to corruption, betrayal, and ultimately murder.

A young scholar uncovers a labyrinthine family legacy, tracing the truth of Vlad the Impaler and the myth of Dracula across centuries and borders, risking life and sanity to confront an ancient evil.

Hugh De Luc's quest to find Sophie, kidnapped during the Crusades, is fraught with danger and historical intrigue.

In 1659 Bavaria, hangman Jakob Kuisl investigates a series of mysterious, tattoo‑marked deaths that echo the town’s brutal witch trials, while his daughter Magdelena and a scholar help uncover a chilling supernatural threat.

Follows Hans Selderson, a German Jew and decorated World War I veteran living in German and working as a textile merchant, and his family as they encounter troubles in the aftermath of the war. Based on the author's life.

A historical mystery about a thug who becomes a detective in Victorian London, set in a small Bihari village in India and filled with skull-lined mansions and underground tunnels.

"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.

In 1920, Private Investigator Isaac Bell battles Bolshevik saboteurs and high‑speed bootlegging as he seeks justice after his friend is killed during a raiding chase.

The Knights TemplarThey had all joined taking three vows: poverty, chastity, and obedience...for they were monks: warrior monks, dedicated to theprotection of pilgrims in the Holy Land -- until stories spread by anavaricious king who wanted their wealth for his own destroyed the order.There was one knight, however, who escaped the stake, vowing justiceas he watched his innocent brothers die.In the Service of the LordSimon Puttock has not been bailiff of Lydford Castle long in this year of 1316, when he is called to a nearby village to examine a burned-out cottage and the dead body within. But it is the newly arrived knight, Sir Baldwin Furnshill, who discerns the deceased was no victim of a tragic mishap; he was, in fact, murdered prior to the blaze. Simon would be well-served by accepting further assistance from this astute, though haunted and secretive stranger. For a second fatal burning indicates that some harsh evil has invaded this once-peaceful place, and its hunger has yet to be sated.

Detective Adrian Monk and his partner Teeger investigate the disappearance of a disgruntled import‑business worker who was involved in a triple murder.

Set during the Peasants' War of 1524-1525 in Germany, the novel follows Agnes, the rebellious daughter of an aristocrat, and her childhood friend Mathis as they flee from warlords, battle in revolts, and discover love amid chaos.

In 1662, hangman Jakob Kuisl is summoned to Regensburg and finds his sister murdered—she is framed for the killing. With his daughter Magdalena, a young medicus Simon, and a network of beggars, he hunts a conspiracy that could topple the German Empire.