As the Blitz intensified, Churchill repeatedly exposed himself to danger in ways that alarmed colleagues and friends. He watched raids from rooftops, kept working instead of going to shelters, and stayed at Downing Street even when an unexploded bomb lay nearby. Others responded by installing blast protection, reinforcing the Cabinet War Rooms, and building the safer Annexe, while concern also shifted to Chequers, whose weak internal protections and predictable location made it vulnerable if bombing or invasion reached it.

At Chequers, Churchill spoke as if a direct fight with German invaders was imaginable, even telling family members they should each take a German with them if the house were attacked. Eric Seal and Pug Ismay studied the estate more closely and discovered how easily it could be identified from the air: the pale gravel of Victory Way and the drive looked like an arrow pointing to the house, especially in moonlight. In response, officials proposed camouflage, stronger guards, hidden accommodations for soldiers, and even an armored car, while Clementine pressed for faster action because the family believed Churchill himself might be a Luftwaffe target.

Security fears spread beyond buildings and roads. The Prof worried that cigars sent to Churchill might be poisoned, leading MI5 to test samples even after Churchill theatrically distributed a box of Cuban cigars to ministers and all survived. At the same time, Beaverbrook became obsessed with the way sirens and alerts disrupted aircraft production; he argued that warnings should be curtailed and pushed for conspicuous defenses that would keep workers at their machines. The Prof, meanwhile, continued sending Churchill coldly practical ideas for warfare, including poisoning wells used by Italian troops and creating burning-oil traps to incinerate enemy columns.

Mary Churchill, frustrated at being kept away from danger, got a closer encounter with war after a parachute mine damaged the Women’s Voluntary Service offices near her. Her anxiety then shifted to politics when Operation Menace at Dakar collapsed into a humiliating failure, reviving criticism of Churchill and making the family fear for his government. While Pamela, increasingly unwell late in pregnancy, and Clementine went to London for Randolph’s swearing-in as an MP, Mary stayed at Chequers and attended a dinner with Coldstream Guards officers. During the evening, a bomb fell nearby, forcing the party into a muddy trench; the next day Mary saw the crater only about one hundred yards away and felt, at last, less excluded from the war.

Early on October 10, Pamela gave birth at Chequers to a son, Winston Churchill Junior, the first child born there in more than a century. Soon afterward Churchill, still brusque about bomb dangers in London, came to Chequers, delighted in the baby, and inspected the crater from the recent blast. Churchill and Ismay thought the bomb near the house might not have been accidental, reinforcing fears that Chequers was too obvious a target. Because Churchill would not give up country weekends, he arranged to use Ronald Tree’s house, Ditchley, as an alternate retreat on bright moonlit weekends, beginning a new and more secure pattern for his wartime stays outside London.