SHATTERED SANCTUARY  Undercover at a tiger sanctuary, Special Agent Grayson Wilde's convinced the owner must be involved in a wildlife trafficking ring--until someone tries to kill her. Now with Gemma Rollins's life on the line, it's clear that more than the wildcats need his help. Gemma's determined to rebuild the tiger oasis she lost when her family died. But someone wants her out of the way, and she's starting to wonder if her parents' and uncle's deaths were really accidental. Grayson says he'll do anything to protect Gemma, but she can't shake the feeling that her alluring new volunteer might not be all that he seems. With a vicious criminal closing in, though, she has to trust Grayson...because she won't survive without him.