Thornchapel Series by Sierra Simone

Genre: Contemporary Romance

A Lesson in Thorns (Thornchapel #1) - Blurb 

When librarian Poe Markham takes the job at Thornchapel, she only wants two things: to stay away from its tortured owner, Auden Guest, and to find out what happened to her mother twelve years ago. It should be easy enough--keep her head down while she works in the house's crumbling private library . . . and while she learns why this remote manor tucked into the fog-shrouded moors would be the last place her mother was seen alive. 

But Thornchapel has other plans for her... 

As Poe begins uncovering the house's secrets, both new and old, she's also pulled into the seductive, elegant world of Auden and his friends--and drawn to Auden's worst enemy, the beautiful and brooding St. Sebastian. And as Thornchapel slowly tightens its coil of truths and lies around them, Poe, Auden and St. Sebastian start unravelling into filthy, holy pleasure and pain. Together, they awaken a fate that will either anoint them or leave them in ashes...