Colebrook Siblings Trilogy Books in Order

The Colebrook Siblings Trilogy is a smaller, tighter spinoff that still sits comfortably inside Kaylea Cross's larger suspense world. These books step away from the full team scale of Hostage Rescue Team and focus more closely on one family and the people pulled into its orbit.

The trilogy begins with Brody's Vow, which follows HRT sniper Brody Colebrook when a dangerous encounter drops a wounded assassin into his path. That setup tells you a lot about the series as a whole. The Colebrook books are still suspense driven, but they feel a little more intimate. Family ties matter more. Personal history matters more. The danger is still real, but it lands closer to home.

Because the series grows out of the HRT world, crossover characters are part of the fun. Trinity, who matters in both the Valkyrie and HRT threads, helps connect Brody's Vow to the bigger universe. Later books, Wyatt's Stand and Easton's Claim, continue that approach by keeping the focus on the Colebrook family while letting familiar faces and consequences carry over from elsewhere.

These are good books for readers who like connected worlds but do not always want the biggest possible cast. The trilogy keeps the protective, action-heavy feel Cross is known for, yet it also leans into sibling bonds, loyalty, and the push and pull between duty and personal happiness.

If you are already reading HRT, this trilogy feels like a natural stop along the way. If you are newer to Cross, it can also work as a compact sample of what she does best, danger, chemistry, and people who would rather throw themselves into a firefight than admit how much they care.