What to read after Vengeance?

Possessed of immeasurable patience, Sebastian, the Demon of Vengeance, has finally been pushed to his limits. His mission is to keep the new Guardian safe until the Sword of Kathnesh is retrieved, but the alluring woman seems to thrive on throwing herself into harm's way at every opportunity. Sebastian is forced to resort to dark magic to save her life--and unwittingly paints a target on her back. Finding the sacred relic is Phoebe Mackenzie's task, and protecting it is her family's legacy. She's determined to live up to the duty and won't be deterred, not even when she realizes she's lost her heart to the sexy, overprotective demon. Sebastian will do whatever it takes to protect Phoebe, even battle an age old nemesis to the death. But in unleashing the raging storm inside him, he risks losing the woman he can't live without. With the barriers between Earth and Hell hanging in the balance, and Phoebe's safety on the line, how will he ever choose?