Darkfever is the first novel in the Fever series written by #1 New York Times best-selling American author Karen Marie Moning.

Soon after arriving in Ireland, Mac is spending the evening in a local pub when she sees an inhumanly beautiful man.

[4] Publishers Weekly review stated that Darkfever was a "A compelling world filled with mystery and vivid character...will stoke readers’ fervor for Bloodfever, the next installment.

"[5] Nina Davis of Booklist wrote "Time-travel-travel romance maven Moning reshapes her Celtic lore for a radically different and engaging new dark fantasy series.

"[6] John Charles from the Chicago Tribune says "Suffused with a seductive mix of Celtic mythology and dark, sexy danger, Darkfever is the first in a beguiling new paranormal romance series.