A Chance for Helena

Roc's sister Helena has found a vampire that she feels can teach her everything she needs to know about passion. The bad thing is he is Simon's number two. Simon, Roc's mate, discourages the couple every way he can.
Chance wants Helena. He doesn't want to keep her, but he wants to feel the passion only she ignites in him. No one wants them together and some are willing to do whatever it takes to keep them apart. Is it possible they are fated to mate or are they just fighting fate for a brief affair?