17 - Crimson Circle by Edgar Wallace

Delve into the world of the notorious Crimson Circle gang, a diverse and dangerous group ranging from wealthy bankers to lowly thugs. They sow terror through murder and extortion, all while remaining anonymous to each other. The enigmatic young beauty, Thalia Drummond, seems to be embroiled in their affairs. But the biggest mystery of all - who is the elusive leader known as The Crimson Circle? Chief Inspector Parr and private detective Derrick Yale are on the trail, unraveling the truth one clue at a time.