Black Coral
Sloan McPherson and the Underwater Investigation Unit have discovered a van at the bottom of a murky Florida pond. Sealed inside the watery tomb are the bodies of four teenagers who disappeared thirty years ago after leaving a rock concert. To authorities, it looks like a tragic accident. To Sloan, it looks like murder. Every piece of evidence is starting to connect to a string of cold case vanishings throughout Florida. Clue by clue, Sloan navigates the warm, dark waters where natural predators feed, knowing that the most dangerous one is still above the surface—nesting and dormant.
But when a fresh young kill is found in the Everglades, Sloan fears that her investigation has reawakened a monster. How can she catch someone who’s a genius at hiding in plain sight? By acting as prey. The dangerous gambit is working—only too well. She’s being lured into a deception of the madman’s own design. Has Sloan set a trap for a serial killer? Or has he set one for her?
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Andrew Mayne
Andrew Mayne is not just a bestselling author—he’s a magician whose illusions have dazzled audiences across the globe and a pioneer in artificial intelligence. With a background that seamlessly blends magic, technology, and storytelling, Mayne brings a unique energy and perspective to the world of thrillers and suspense.
Born with a fascination for the extraordinary, Andrew started his career as a magician, creating mind-bending illusions that left audiences questioning reality. His innovative style, dubbed “Shock Magic,” combines street-level trickery with grand illusions, earning him spots performing for prestigious names like David Copperfield and even astronauts aboard the International Space Station. But his creative vision didn’t stop there.
Underwater Investigation Unit
The Underwater Investigation Unit series immerses readers into a world where danger lurks beneath the surface of the ocean, and no mystery is too deep to uncover. With its perfect blend of pulse-pounding suspense, meticulous police work, and the eerie allure of underwater exploration, this series presents a unique twist on the traditional thriller. Here, crime doesn’t just happen on land—it thrives beneath the waves.
Underwater Investigation Unit consists of five books and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.

