Darkmoon (Seasons of the Moon: Cain Chronicles #5)

Rylie Gresham has survived becoming a werewolf, going crazy from silver poisoning, and being hunted by her fiance's family. But that was nothing compared to the challenge Rylie faces now: being pregnant...with twins. And it definitely doesn't help that her fiance's brother has declared himself the father, either.

The brothers, Seth and Abel, are at each other's throat over Rylie, even as the twins are fast approaching term. But it may be too late for all of them. The government has revealed the existence of werewolves, threatening everything that Rylie holds dear. And the evil werewolf Cain is preparing for his final act of revenge: destroying the pack and stealing Rylie's children.