Odette Hallowes reached British intelligence by mailing her vacation photos to the wrong office. In 1942 the Admiralty asked the public for prewar snapshots of the French coastline, and she sent hers of Boulogne to the War Office instead, where they landed on the desk of Maurice Buckmaster, head of the Special Operations Executive. Her assessors called her excitable, temperamental, stubborn, and short on worldly experience, and pushed her through anyway. What they were reading as flaws had been built decades earlier: as a girl in Amiens she spent more than three and a half years completely blind, then months bedridden with polio. Her convent teachers called her a difficult child. She was learning how to live in the dark and how to survive a body that would not cooperate.

A training injury kept her from parachuting, so she was smuggled into France by boat near Cassis in late 1942 under the codename Lise. She found the Spindle circuit on the Riviera in chaos, its leadership feuding and a courier having lost a list of 200 local supporters straight to the Germans. She became courier to Peter Churchill until a German spycatcher, Hugo Bleicher, posed as an anti-Nazi officer wanting to defect and ambushed them in the Alps in April 1943. At Fresnes prison she was interrogated 14 times, her back scorched with a red-hot poker, her toenails torn out. She gave up no one. Instead she went on the offensive with a fabricated story that turned two disposable spies into political assets nobody down the chain of command dared execute.

• She told the Gestapo that Peter Churchill was Winston Churchill’s nephew and that she was his wife, an innocent aristocrat’s spouse. The lie did not appeal to mercy, it appealed to a bureaucracy’s fear of getting it wrong with Berlin watching.
• Handed two separate death sentences in June 1943, she pointed out that she only had one life to give and they would have to choose a charge.
• In solitary at Ravensbruck, starved, in darkness beside the crematorium, she survived by breaking existence into single minutes and by deciding to accept her own death, which stripped her captors of their one real weapon.
• With Americans closing in, camp commandant Fritz Suhren drove her to the Allied lines himself, hoping his prize hostage would save him. She took his pistol, had him arrested, and later testified at the trial that sent him to the gallows.