Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Their Unbreakable Bond | 2021 | Ciara Knight | Buy |
| 2 | Finding Her Way Back | 2022 | Ciara Knight | Buy |
| 3 | The Veteran’s Vow | 2022 | Ciara Knight | Buy |
| 4 | Her Easter Prayer | 2022 | Ciara Knight | Buy |
| 5 | Earning Her Trust | 2022 | Ciara Knight | Buy |
| 6 | Guarding His Secret | 2022 | Ciara Knight | Buy |
| 7 | An Unlikely Alliance | 2022 | Ciara Knight | Buy |
| 8 | A Reason to Stay | 2022 | Ciara Knight | Buy |
| 9 | The Veteran’s Holiday Home | 2022 | Ciara Knight | Buy |
| 10 | An Alaskan Christmas Promise | 2022 | Ciara Knight | Buy |
| 11 | A Steadfast Companion | 2023 | Ciara Knight | Buy |
| 12 | A Friend to Trust | 2023 | Ciara Knight | Buy |
| 13 | Her Alaskan Companion | 2023 | Ciara Knight | Buy |
| 14 | A Companion for Christmas | 2023 | Ciara Knight | Buy |
| 15 | Her Christmas Healing | 2023 | Ciara Knight | Buy |
| 16 | Finding Their Way Back | 2023 | Ciara Knight | Buy |
| 17 | Their Inseparable Bond | 2024 | Ciara Knight | Buy |
| 18 | Bonding with the Babies | 2024 | Ciara Knight | Buy |
| 19 | Her Son’s Faithful Companion | 2024 | Ciara Knight | Buy |
| 20 | Training the K-9 Companion | 2024 | Ciara Knight | Buy |
| 21 | A Companion for His Son | 2024 | Ciara Knight | Buy |
| 22 | Her Loyal Companion | 2024 | Ciara Knight | Buy |
| 23 | A K-9 Christmas Reunion | 2024 | Ciara Knight | Buy |
| 24 | His Christmas Salvation | 2024 | Ciara Knight | Buy |
| 25 | Guarding Her Christmas Secret | 2024 | Ciara Knight | Buy |
| 26 | A Faithful Guardian | 2024 | Ciara Knight | Buy |
| 27 | The Veteran’s Valentine Helper | 2025 | Ciara Knight | Buy |
| 28 | Rescue on the Farm | 2025 | Ciara Knight | Buy |
| 29 | An Unexpected Companion | 2025 | Ciara Knight | Buy |
| 30 | Earning the Veteran’s Trust | 2025 | Ciara Knight | Buy |
| 31 | Holding Onto Secrets | 2025 | Ciara Knight | Buy |
| 32 | His New Companion | 2025 | Ciara Knight | Buy |
| 33 | The Soldier’s K-9 Companion | 2025 | Ciara Knight | Buy |
| 34 | Her Surprise Neighbor | 2025 | Ciara Knight | Buy |
| 35 | Healing the Veteran | 2025 | Ciara Knight | Buy |
| 36 | An Unexpected Christmas Helper | 2025 | Ciara Knight | Buy |
| 37 | The Rancher’s Christmas Gift | 2025 | Ciara Knight | Buy |
| 38 | An Unexpected Texas Reunion | 2025 | Ciara Knight | Buy |
| 39 | Training Her Alaskan K-9 | 2026 | Ciara Knight | Buy |
| 40 | A K-9 to Reunite Them | 2026 | Ciara Knight | Buy |
| 41 | Healing a Rescuer’s Heart | 2026 | Ciara Knight | Buy |
| 42 | Trusting the Veterinarian | 2026 | Ciara Knight | Buy |
| 43 | His Daughter’s Faithful Companion | 2026 | Ciara Knight | Buy |
K-9 Companions is a long-running multi-author series published under Harlequin’s Love Inspired line. Starting with Their Unbreakable Bond in 2021, the series has grown to 43 books with entries scheduled through 2026. Ciara Knight is one of many authors who have written for this collection, which pairs romance with stories about service dogs, therapy animals, and working K-9s.
The series covers a wide range of settings and situations, from military veterans healing with the help of companion dogs (The Veteran’s Vow, Earning the Veteran’s Trust, Healing the Veteran) to holiday-themed romances like A K-9 Christmas Reunion, An Alaskan Christmas Promise, and His Christmas Salvation. Other entries focus on rural and small-town life, such as Rescue on the Farm and An Unexpected Texas Reunion. Each book is a standalone clean romance, so readers can pick up any title without needing to follow a specific order. The consistent theme across all 43 books is the bond between humans and dogs, and how that connection helps people find both healing and love.