Hero For Hire (Eno the Thracian, #1)

Eno the Thracian - Swift Sword, Reasonable Rates
When you live in Ancient Greece, monsters and gods are just part of the scenery...until they run amok. Then you need to hire a hero. There's nobody better at out-witting a sphinx, charming a goddess, or swinging a sword than Eno the Thracian. Armed with a dry sense of humor, a body like living rock, and a wide experience of love, death, and olive oil, Eno is just what the philosopher ordered...if you can afford him.
The king of Leros hires Eno the Thracian to rid the island of a harpy. Eno never expects the mission to turn into a mystery that shakes the throne of Zeus Himself. An undead army is about to arise under the banner of a witch queen which will destroy everyone and everything in its path. Eno must fight against it or join it as Hekate's general...and lover.

C.B. Pratt has a long history with history...and an equally long love affair with the never-ending dreams of speculative fiction. It seemed only natural to combine the two into the worlds of Eno the Thracian. While the main story is complete in the five books that comprise the series, rumors are flying that Eno isn't quite finished with his tales and that there may be novellas ahead.
The novels in order:
Hero for Hire
The Stone Gods
Dark Mountain
Rivers of Sand
Eno and the Dragon