Silent Thunder

Used Hardcover

Silent Thunder by Iris Johansen (with her son Roy) follows marine architect Hannah Bryson as she discovers a deadly plot while inspecting a decommissioned Soviet submarine for a museum; after her brother's murder reveals the sub holds explosive secrets (possibly linked to a legendary treasure or weapon), she teams up with a mysterious mercenary to find the truth, battling ruthless enemies and government agents to stop a catastrophe. It's a fast-paced thriller focused on uncovering ancient secrets hidden within modern technology, blending archaeology, espionage, and thrilling action as Hannah races to prevent disaster and avenge her family.