Oracle's Moon by Thea Harrison — book slip

Grace Andreas never expected to become the Oracle of Louisville, but when her sister and brother-in-law are killed, she inherits not only the Power but also the responsibility of caring for her sister's two young children.

Unprepared for the challenges ahead, Grace finds an unlikely ally in Khalil, a powerful Djinn Prince of House Marid. Driven by his affection for the children, Khalil becomes both a protector and a source of frustration for Grace.

As danger looms and an attempt is made on her life, Grace realizes that Khalil might be the only one who can truly protect her and offer her more than any mortal man.

For fans of paranormal romance with a touch of humor and emotional depth.