Audiobook Review: Dark Dive by Andrew Mayne

I received a review copy from the publisher. This does not affect the contents of my review and all opinions are my own.

Dark Dive by Andrew Mayne

Mogsy’s Rating (Overall): 4 of 5 stars

Genre: Mystery, Thriller

Series: Book 5 of Underwater Investigation Unit

Publisher: Brilliance Audio (March 12, 2023)

Length: 7 hrs and 33 mins

Author Information: Website

Following a brief disbandment, the Underwater Investigation Unit is back in Dark Dive by Andrew Mayne…and so are the gators! Police diver Sloan McPherson and her colleagues arrive at the scene of an accident where a van transporting a bunch of corpses has crashed into a swamp full of alligators, and of course it had to be mating season. Lusty crocodilians turn out to be the least of her worries, however, when a new case involving a close friend lands on the UIU’s desk. All in the middle of an existential crisis as Sloan ponders her future with the force.

Florida’s expert diving community is like a closely-knit family, so when one of its members goes missing, the news usually makes waves. Still, no one thought it too strange when Fred Stafford, practically a legend in Sloan’s circles, has not been seen in quite some time. The man was experienced, eccentric, and frequently took odd diving jobs and worked alone. But when one of her leads takes Sloan to a flooded sinkhole in the middle of the forest, beside which Stafford’s truck is found empty and abandoned, concern for her friend begins to grow. An investigation of his records also shows mounting gambling debts and shady business partners, making Sloan wonder if she ever knew the man at all. What has Fred Stafford gotten himself into?

If you recall my review of the last Underwater Investigation Unit novel, Sea Castle, I loved the fact that the story took us away from the diving action. That said, I’m aware I’m likely in the minority who felt that way, but good news for those who crave the UIU’s underwater antics—Sloan and the gang are getting back in their wetsuits in Dark Drive. At five books strong, the series is once more plunging readers back into the thrilling world of solving crime in Florida’s waters, and I am still all for it.

I am also excited to see the return of Gwen Wylder, one of best characters to come from the mind of Andrew Mayne. Her relationship dynamic with Sloan was my favorite aspect of Sea Castle, and my wish to have her become a recurring character in the series appears to have been fulfilled as Gwen becomes a contract researcher for the UIU team. Sloan herself continues to be a compelling protagonist, showing a more vulnerable side in Dark Dive as a close call makes her question the dangers of her job and just how much she is willing to risk. Juxtaposed with her sharp reflexes and unwavering instincts, her flaws and doubts make her a relatable and endearing protagonist.

The plot unfolds with multiple layers, taking readers on a tour through the landscapes of Florida, both underwater and above ground as it explores its myths and history, A myriad of mysteries and intrigue also propel the story forward, as themes of death and disappearance, family and friendships add layers of depth and complexity.

Finally, five stars to narrator Susannah Jones who returns once more to give voice to Sloan in the audiobook. If you enjoy exciting stories that deliver a mix of police work with science and technology, these are the books for you.

More on The BiblioSanctum:
Review of The Girl Beneath the Sea (Book 1)
Review of Black Coral (Book 2)
Review of Sea Storm (Book 3)
Review of Sea Castle (Book 4)