High school teacher Shannon Parker is magically transported to another world after she comes into contact with an ancient Celtic vase that bears her likeness. Shannon awakes in her new reality to find she's switched places with her doppelganger, Rhiannon, who in turn has been transported to Shannon's world and has taken her place teaching English to hormonally challenged adolescents in Oklahoma.

Shannon has to come up to speed quickly to survive in her new role. As Goddess Incarnate of Epona, Shannon is responsible for the welfare of a nation. Coerced into a political marriage with a Centaur chieftain, Shannon and her new husband unite their people in a fierce battle against the Fomorians, a vampire-like race who threatens to overrun and destroy their world. And even if Shannon and ClanFintan win the battle with the Fomorians, there's still the "real" Rhiannon to contend with.

Disillusioned with life in Oklahoma, Rhiannon is determined to return to her own life as Goddess. For that to happen, Shannon has to leave hearth, home and husband -- all that she's learned to love and hold dear.

I loved this story the first time I read it in small press form as "Goddess by Mistake" a few years ago and I loved it this time, too. A lot has been added to this edition. It's not just an old book with a new cover and title, but a total rewrite. P.C.Cast is an excellent writer and it is great to have seen her go from small press to a major publisher. No one deserves it more. That she's a teacher, too, is just icing on the cake.