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      Cold Case K-9

      by Caridad Pineiro
      Published
      Jan 2026
      Main Genre
      Romantic Suspense Rom. Suspense
      Pages
      224
      Buy on Amazon Book
      Series
      Crooked Pass Security Book 3
      Also Appears In
      Mills & Boon Heroes Book 781 Harlequin Intrigue Book 2333 Harlequin Intrigue Large Print Book 2333 Mills & Boon Intrigue (Australia)

      About This Book

      Only a competent K9 and her handler

      Could find her sister's killer.

      CBI Agent Gabriella Ruiz is convinced a missing hiker is a reemerging serial killer's next victim. Believing she's too close to the case, the Bureau refuses to follow her hunch. Luckily, Gabriella finds unexpected help in Crooked Pass Security's unique investigative team. Expert tracker Diego Rodriguez and his faithful K-9, Poppy, go searching for clues from the ground up. But when the killer focuses on Gabriella, Diego -- and Poppy -- must keep her safe from the killer's dangerous grasp.

      Series Placement

      Book 3
      View full series order
      Also Appears In
      Mills & Boon Heroes
      Book 781
      🟢 Fully Standalone
      Also Appears In
      Harlequin Intrigue
      Book 2333
      🟢 Fully Standalone
      Book 2333
      🟢 Fully Standalone
      🟢 Fully Standalone

      Genres & Themes

      Genres

      Romance Suspense

      Subgenres

      Category Romance Contemporary Romance Cozy Mystery Crime Mystery Police Procedural Romantic Suspense Thriller

      Themes

      Kidnapping

      Characters & Occupations

      Animals Police / Lawmen / FBI Agents

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      Formats & Editions

      Browse the different covers, formats, and publication history for this title.

      Paperback

      Paperback edition cover
      Mass Market Paperback
      First Edition Jan 2026 Harlequin ISBN 1335690387
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      eBook

      eBook edition cover
      eBook
      Dec 2025 -- Not Selected ISBN B0F1G2TK45
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      eBook edition cover
      eBook
      Dec 2025 Mills & Boon (Australia) ISBN 1038971950
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      eBook edition cover
      eBook
      Jan 2026 Harlequin ISBN 0369770668
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      eBook edition cover
      eBook
      Jan 2026 Mills & Boon (UK) ISBN 0008948216
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      Audio

      Audio edition cover
      Audible
      Dec 2025 -- Not Selected ISBN B0F2365692
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      Large Print

      Large Print edition cover
      Mass Market Paperback
      Jan 2026 Harlequin ISBN 1335082271
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