Books like Tunnel 29 by Helena Merriman

In Matt Haig’s Midnight Library, Nora Seed explores an infinite library in which every book records a life she could have lived, challenging her to confront regret, choice, and the meaning of a fulfilled existence.

A biography of Oleg Gordievsky, the Soviet double‑agent who, while working undercover in the KGB, supplied MI6 with critical intelligence that accelerated the collapse of the Cold War.

During the Second World War, MI5 and British naval intelligence engineer Operation Mincemeat—feigning an invasion of Greece and Sardinia by sending a corpse laced with false documents off the coast of Spain to trick the Nazis and pave the way for the invasion of Sicily.

"A thrilling Cold War narrative exploring two harrowing attempts to rescue East Germans by tunneling beneath the Berlin Wall, the U.S. television networks who financed and filmed them, and the Kennedy administration's unprecedented attempt to suppress both films. In the summer of 1962, one year after East German Communists built the Berlin Wall, a group of daring young West Germans came up with a plan. They would risk prison, Stasi torture, even death to liberate friends, lovers, and strangers in East Berlin by digging tunnels under the Wall. Among the tunnelers and escape helpers were a legendary cyclist, an American student from Stanford, and an engineer who would later help build the tunnel under the English Channel. Then two U.S. television networks, NBC and CBS, heard about the secret projects, and raced to be first to air a spectacular 'inside tunnel' special on the human will for freedom. The networks funded two separate tunnels in return for exclusive rights to film the escapes. In response, President John F. Kennedy and Secretary of State Dean Rusk, wary of anything that might raise tensions and force a military confrontation with the Soviets, maneuvered to quash both documentaries. Unfolding week by week, sometimes hour by hour, Greg Mitchell's riveting narrative deftly cuts back and forth from one extraordinary character to another. There's the tunneler who had already served four years in the East German gulag; the Stasi informer who betrays the 'CBS tunnel'; the young East Berliner who escapes with her baby, then marries one of the tunnelers; and broadcast legend Daniel Schorr, who battled unsuccessfully to save his film from White House interference and remained bitter about it to the end of his life. Looming over all is John F. Kennedy, who was ambivalent about--even hostile toward--the escape operations. Kennedy confessed to Dean Rusk: 'We don't care about East Berlin.' Based on extensive access to the Stasi archives, long-secret U.S. documents, and new interviews with tunnelers and refugees, The Tunnels provides both rich history and high suspense. Award-winning journalist Mitchell captures the hopes and fears of everyday Berliners; the chilling reach of the Stasi secret police; U.S. networks prepared to 'pay for play' yet willing to cave to official pressure; and a White House and State Department eager to suppress historic coverage. The result is 'breaking history, ' a propulsive read whose themes reverberate even today"--

"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.