Description
Strange envelops marked with a crimson circle have started to appear across London: a series of blackmailing letters, each directed at prominent figures in society and communicating the threat of punishment if the demands within aren’t met—a promise that has yielded fatal results for those who have ignored those instructions.
Despite their best efforts, the police haven’t been unable to track down this shadow cabal of criminals, leaving them without the means to put an end to the terror that has overtaken London and its citizens.
The lead investigator in the Crimson Circle case, Chief Inspector Parr, finds an unlikely partner in Derrick Yale, an enigmatic detective with a peculiar gift for deduction, after the Circle claims...