Ring of Fire — Ally Shields

She stands between a daemon's revenge and earth's survival...

With her eighteenth birthday approaching, Rayne Calin-De Luca is feeling the pressure. Marked as the Chosen by an ancient prophecy, she and her parents -- Guardian Witch Arianna and vampire prince Andreas -- have desperately searched the world for the secrets behind the coming battle, when the ancient plague deamon Maelrad will break loose from Hell to wreak worldwide vengeance. So far, the means to defeat him have eluded them, and the inevitable conflict draws nearer with each passing hour...

As Maelrad's power grows stronger, the demon's poison is seeping through the veil and polluting the earth with violence. His minions openly stalk Rayne, her family, and friends. As things turn from bad to worse, Rayne's confidence wavers. How can one novice witch defeat a centuries-old master daemon? She knows the terms of the prophecies forming the Esielen Triad cannot be changed. Armed only with her magic and a dagger, she is destined to face Maelrad alone.

For fans of kickass witches and the compelling men who fight alongside them comes the final book in the Guardian Witch universe. Ring of Fire winds up the action-packed sequel trilogy to the original series with an explosive conclusion.