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Citadel Solutions Series in Order: 5 books


  • Book - 1

    Duty was supposed to be simple -- until she walked into his mission. Ethan Cross doesn't get emotionally involved. As the head of Citadel Solutions, he handles high-stakes security with military precision and zero distractions. Protecting internat...



  • Book - 2

    She saves lives with steady hands. He takes them with deadly precision. In the war-torn jungles of Corazón, Dr. Lauren Valentino runs a field hospital under siege -- treating the wounded, protecting the innocent, and risking everything to hold th...



  • Book - 3

    Ty Hughes handles the most dangerous protection assignments on the planet -- it's what Citadel Solutions is built for. So babysitting some old biochemist for a few weeks? Boring as hell, but no problem. Until he meets Dr. Charlotte Gifford....



  • Book - 4

    Seven years. That's how long Jolly has been Ben Garrison's partner. His constant. The only relationship the Citadel Solutions K9 handler has ever trusted completely. Now the gray is spreading across Jolly's muzzle. The stiffness lin...



  • Book - 5

    Sarah Whitman has spent a year in Kenya, building a life she loves -- healing animals, bonding with the local village, finally feeling like she belongs somewhere. When armed poachers threaten everything she's fought to protect, she refuses to ...




Books in this series fall into the following genres

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Frequently Asked Questions (FAQ)

There are 5 books in the Citadel Solutions series.

The next book in the Citadel Solutions series, Duty Preserved (Book 5), will be published in September 2026.

The first book in the Citadel Solutions series, Duty Unbound, was published in June 2025.

The Citadel Solutions series primarily falls into the Contemporary Romance genre.

Top Series in Contemporary Romance

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