The More Deceived — David Roberts

1937. Much to the government's embarrassment, Winston Churchill has been receiving unauthorized information on the perilous state of Britain's rearmament program. Lord Edward Corinth is brought in by the Foreign Office to investigate the leaks, but rapidly falls under Churchill's spell and quickly abandons his investigation to concentrate instead on finding the murderer of a Foreign Office official who may have been one of Churchill's sources. He soon finds himself trying to untangle a web of intrigue and deception which threatens the security of the state.
A second murder within the Foreign Office calls for a visit to Spain to find the murdered man's son. But Edward's real objective is to satisfy a gnawing fear that his friend Verity Browne is in extreme peril. Verity is reporting on the Civil War for the New Gazette and scents a scoop when she is given secret information that the enemy is planning to attack on the undefended town of Guernica. With Edward in tow, she arrives just in time to witness a barbarous aerial bombardment on a civilian population with no means of defending itself.
Back in England, Edward is faced with death once again … this time at Brooklands in Surrey, where the world's fastest women race against the odds, reckless of danger and in love with speed.