Duty Unbound (Citadel Solutions)

Duty Unbound (Citadel Solutions)

by Dominic Pierce

4.5 (1,726)

4.5 stars from 1,726 reviews. Top 83% of Contemporary Fiction books we track.

Published 2025-05-25

$2.99KU50% off peak

Last checked: Apr 27, 2026

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Fans of these authors will like this...

  • Natasha Knight
  • Mariah Dietz
  • Cassie Alexander

Fans of these books will like this...

  • Credence
  • Conveniently Dani
  • Protecting Parker

Perfect for you if...

  • You love contemporary romance with workplace tension and a gruff-professional-meets-softhearted-woman dynamic.
  • You're drawn to stories where the real threat isn't just external danger but the emotional risk of letting someone in.
  • You want a security/bodyguard premise executed with actual stakes and chemistry that justifies why he can't look away.

Maybe not for you if...

  • You prefer slow-burn romance that stretches over years rather than intensifying during an active security mission.
  • You're not interested in stories where professional boundaries blur mid-job, even with good reason.
  • You want your pop star characters to be the focus, not secondary to their quieter family members.

About this book

Ethan Cross, head of Citadel Solutions, is hired to protect international pop star Nova Rivers from a stalker. As a security professional, he maintains emotional distance and treats the assignment as routine. However, Ethan becomes drawn to Melanie Rivers, Nova's sister. Melanie works behind the scenes managing Nova's career, sacrificing her own aspirations to support her family. Ethan recognizes qualities in her that others overlook—her willingness to bear others' burdens and the strength beneath her composed demeanor. Though Melanie is not his client and not part of his official mission, his professional boundaries begin to blur the longer they interact. As the assignment progresses, hidden dangers emerge that threaten more than the original objective. A single misstep could have serious consequences for everyone involved.

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Kindle price over time. Green zones = periods when the book was free.

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Free$3.00$5.99Apr '25Dec '25Dec '25Apr '26
$2.99$5.99

Currently on sale at $2.99 — 50% off peak. Price has dropped 2 times over the last 12 months. Goes on sale roughly every 118 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#823#38,769#76,714May '25Oct '25Jan '26Apr '26

Currently #4,428 in the Kindle store — a top-10K bestseller.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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4.0★4.5★5.0★Jun '25Jun '25Jul '25Aug '25RatingReviews

Currently 4.5★ from 1,726 reviews

Gaining approximately 295 new reviews per month. Reader interest is accelerating. Rating has dipped slightly from 5.0 to 4.6.

Sale Prediction

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Free$3.00$5.99Apr '25Dec '25Dec '25Apr '26PredictedApr '26

Actual Predicted

This book is currently discounted at $2.99. It typically returns to around $5.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Dominic Pierce

1 book on Vagrant Press

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