Black Rain

In the drowned streets of post-hurricane New Orleans, something more dangerous than floodwater is rising. When an armored transport is violently ambushed and a sealed refrigerated container marked SERAPHIM disappears into the chaos, NOPD Detective Nick Gatlin and his partner Maria Ramirez are pulled into a case that should not exist. What begins as a high-end robbery quickly unravels into something far older-and far deadlier.
The cargo was never money. It was containment. Nick and Maria uncover traces of a long-dead Cold War bioweapons program, a missing government scientist, and a private network determined to keep both buried. At the center of it all stands a figure Nick thought he'd left in his past: a ruthless ex-CIA operative known only as The Phantom. As bodies surface and evidence vanishes, the truth becomes clear-SERAPHIM is not just a weapon, but a neurological virus designed for selective collapse.
A controlled reset of society, engineered by a shadow syndicate operating in the space between governments. With FEMA investigator Marla Leclerc offering assistance that feels increasingly like manipulation, Nick and Maria race through the ruins of a flooded city on the brink of a second catastrophe. Their only certainty is this: the next outbreak won't look like an attack. it will look like an accident.
The final confrontation leads them to the haunted remains of the Old Ursuline Convent, where the past and future of the city converge-and where stopping the virus may require choosing who gets to survive it. Black Rain is an explosive, atmospheric thriller of conspiracy, memory, and catastrophe, perfect for fans of James Lee Burke, Lee Child, and Jeff VanderMeer's darker speculative edge.