Shadow on the Moon — Connie Flynn

A LOVE TOO DANGERUS TO POSSESS
Dana Gibbs, a biologist who specializes in wolf behavior, is in Arizona to join an investigative team looking into a series of mysterious deaths. Some people believe wolves are the killers. Dana knows better: there are no wolves in Arizona, not normal wolves anyway. And Dana doesn't believe in the supernatural...until she meets Morgan Wilder.

TOO IRRESISTIBLE TO LET GO
A former psychiatrist now living alone in an isolated cabin, Morgan is a man tormented by a past he cannot erase or escape. When he rescues Dana during a spring blizzard, he carries her into the circle of his desire - and his secrets. As passion sweeps Dana and Morgan into an affair neither can resist, Dana begins to see a threatening side of Morgan that disturbs her. The good man she thinks she knows sleeps behind a barred door...disappears when the moon is full...and is cursed beyond redemption - unless he is saved from this evil by a woman's love.