He promised to keep her safe…without crossing any of his self-imposed lines. K-9 officer Aiden Murphy always kept things strictly platonic when it came to KCPD criminalist Lexi Callahan out of respect for her family's having taken him in years ago. Then Lexi is attacked during a crime scene investigation, and Aiden and his dog, Blue, step right in, making their relationship even more complicated. Keeping Lexi safe is his priority. But resisting the woman who's never been far from his thoughts will be his greatest challenge this holiday season. From Harlequin Intrigue: Seek thrills. Solve crimes. Justice served. Discover more action-packed stories in the Kansas City Crime Lab series. All books are stand-alone with uplifting endings but were published in the following order: Book 1: K-9 Patrol Book 2: Decoding the Truth Book 3: The Evidence Next Door Book 4: Sharp Evidence