A Kingdom of Souls and Shadows - Leslie O'Sullivan - Bog

All her life, Eala Duir, a young college professor, has skirted the edges of a fantasy world.
Visions of folk stories coming alive in hearth flames and vivid daydreams where carousel horses ride off to battle, drove Eala to pursue an academic life specializing in tales of the Fae.
When a cryptic message in her grandmother's will sends her to Ireland, Eala clashes with Sionnach Loho, an attractive, enigmatic local expert on folklore. After witnessing Eala's encounter with a ghost girl at an allegedly haunted castle, Sionnach reveals his own ties to the Fae realm. He insists Eala's ability to connect with the supernatural proves she's been sent to partner with him and fulfill a centuries-old otherworldly quest ordained by the mighty Finnbheara, King of the Connacht Fae.
As folktales and faeries collide with Eala's reality, she must decide whether to embrace the fantastic or flee back to the safe and predictable life she thought she always wanted.