“A Spy by Calling” is the first novel in the historical series by Dennis Wheatley about the life, love and dangerous adventures of the best secret agent of the British crown, Roger Brooke. A young man of noble birth is forced to flee to France and wander in a foreign land without a means of support. A sharp mind, ingenuity and a cheerful disposition help the young man become the trusted secretary of the Marquis de Rochambeau, win the heart of his beautiful daughter, and most importantly, obtain strategically important information for England, deliver it to the country's Prime Minister and earn his gratitude and trust.