The Wrecking Crew — Taylor Zajonc

“Fans of action-packed thrillers with nautical settings will be more than satisfied with Zajonc's accomplished debut, which kicks off a promising series” -- Publishers Weekly, starred review).
 
The pirate-plagued waters of Somalia have gotten even more deadly since a mysterious red tide began killing all marine life within its reach. When a research team attempting to study the phenomenon is shot out of the sky, extraordinary measures are required to investigate.
 
In exchange for his freedom from a secret Moroccan prison, salvage diver Jonah Blackwell agrees to lead a covert search for the missing scientists. But when his expedition threatens the ambitions of billionaire industrialist Charles Bettencourt, Jonah must assemble an untested crew to discover the source of a terrifying plague while facing down Bettencourt's private army.