Critical Condition (Undercover Cops, 3)

There's a murderer in the hospital, and nurse Tara Peterson is determined to prove it. With mysterious deaths in the cancer ward, anyone could be next. But no one wants to believe her…except undercover agent Zach Davis. The murderer wants Tara's suspicions silenced, permanently. To protect Tara, Zach lets her in on his secret, and unwittingly into his heart. Tara and her three-year-old daughter are like the family he lost years before. Zach will risk everything to keep them safe, no matter the cost.