Of Monsters and Madness by Jessica Verday

A romantic, historical retelling of classic Gothic horror featuring Edgar Allan Poe and his character Annabel Lee, from a New York Times best-selling author.

Annabel Lee is summoned from Siam to live with her father in 1820's Philadelphia shortly after her mother's death, but an unconventional upbringing makes her repugnant to her angry, secretive father.

Annabel becomes infatuated with her father's assistant Allan, who dabbles in writing when he's not helping with medical advancements. But in darker hours, when she's not to be roaming the house, she encounters the devilish assistant Edgar, who bears an uncanny resemblance to Allan, and who others insist doesn't exist.

A rash of murders across Philadelphia, coupled with her father's strange behavior, leads Annabel to satisfy her curiosity and uncover a terrible truth: Edgar and Allan are two halves of the same person - and they are about to make the crimes detailed in Allan's stories come to life. Unless Annabel stops them.