Books like Assassin's code by Jonathan Maberry

Covert agents Jon Smith and Randi Russell uncover a bioterror threat that could annihilate humanity.

Detective Joona Linna returns from Sweden to chase a web of homicides tied to a clandestine arms deal, blending crime investigation with thriller suspense.

A murder‑for‑hire assassin kills a senator, becomes a target to his employers, and is pursued by a Justice Department analyst who uncovers a deadly conspiracy.

Detective John Corey uncovers a deadly plot tied to the elite Custer Hill Club. With his FBI agent wife Kate, he races to stop a secret nuclear‑terrorism plan known as "Wild Fire" before it is unleashed.

After nationwide stadium bombings, the President reinstates Op‑Center to stop a Saudi prince who manipulates U.S. policy to seize global oil supplies, ignite a war with Syria, and unleash a sleeper cell against America.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

Private detective Isaac Bell hunts a lethal assassin targeting rivals of Standard Oil, racing across the US and the Caspian region to protect a crucial government contract.

A thriller about a nuclear scientist turned murderer, and the man who tries to prevent a nuclear disaster.

Bella, a young White House dressmaker, and John Wilkes Booth narrate the tense lead‑up to Lincoln’s assassination in this vividly told, dual‑narrative story of 1860s Washington, D.C.