Sea Castle (Underwater Investigation Unit #4)
Andrew Mayne
4.33 · 3 ratings · Published: 21 Feb 2023
For answers she reaches out to Gwen Wylder. The Miami homicide detective is notorious for being manipulative, bitter, a tyrant to her peers, and wicked smart. And she demands something in return from Sloan: fresh insight into seemingly unrelated cold-case murders and disappearances—and a possible serial killer trolling the Florida coast.
As loose ends of the old files begin to come together, another woman disappears. Sloan and Gwen are certain she’s the newest link in a deadly chain. They are determined to track her down before she dies, but they soon find themselves in uncharted waters. And the deeper Sloan and Gwen go, the stranger the case gets.
- thriller 4
- mystery 3
- suspense 3
- crime 3
- law enforcement 3
- police procedural 3
- female mc 3
- serial killer 2
- cults/occultism 2
- action / adventure 2
- psychological 2
- terrorism 1
- political 1
- political intrigue 1
- spirituality 1
- Add topics
- content warnings
- abuse 2
- format - reader age
- audiobook 2
- book 1
- adult fiction 1
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The 'Underwater Investigation Unit' series
84 ratings 4.20 ·
law-enforcement · action-adventure · suspense · book · adult · crime · thriller · mystery · female-mc · fiction · audiobook · police-procedural · murder · contemporary · killer · nautical · political-intrigue · serial-killers
Underwater Investigation Unit reading order and complete book list ❯