I've just released Risen. I really like this series. The basic premise actually came from a dream, interestingly. It's punchy and pretty serious - so don't expect a light romp. It follows a witch banished from her realm who claws her way back to her old school to save the land. But the only way to do that is to find out the truth and reconcile with her past.
If you've read Grail's Dawn, they're similar in tone, and you'd probably enjoy Risen.
Risen: The Complete Series is also available if you want to buy it all in one hit.