The Deceivers portrays the thuggee cult and corruption during
Company rule in India. Historically, the
East India Company was the world's first
joint-stock company — chartered by Queen
Elizabeth I of England in 1601. The main character, William Savage, is an official of the East India Company and
tax collector (or, as he would rather view himself, colonial administrator) of the fictional district of "Madhia". He is deeply committed to his duties, which he considers to lie with the people of his district, rather than tax extraction for the East India Company. He is fluent in four dialects and has a highly developed sense of honour. At the beginning of the story, he marries his fiancée Mary Wilson, the daughter of Colonel Wilson and twenty years his junior. In the course of the story, he discovers a
mass grave, filled with the remains of travellers, all of whom were evidently strangled to death in ritualistic fashion, among them a recently killed British officer. This leads him to begin an investigation, in the course of which he arrests Hussein, who confesses to being a
thug, or deceiver. Colonel Wilson arrives and is furious at the measures that Savage has taken to find those responsible for the mass murders. He refuses to believe Savage's story of the thuggee cult, blaming the murders on
dacoits (bandits) instead. Savage then decides to become a thug and infiltrates their society with Hussein's help. His character is loosely based on
William Sleeman, who historically started an extensive campaign involving profiling, intelligence, and executions. == Relations with other books in the series ==