When lovely Cara Quayne dropped dead to the floor after drinking the ritual wine at the House of the Sacred Flame, she was having a religious experience of a sort unsuspected by the other initiates. Discovering how the fatal prussic acid got into the bizarre group's wine is but one of the perplexing riddles that confronts Soctland Yard's Inspector Roderick Alleyn when he's called to discover who sent thie wealthy cult member to her untimely death.
Passersby hardly ever noticed the church on Knocklatchers Row. Only a handful of intimates knew of he the witchcraft that was practiced in the House of the Sacred Flame.
But the outsize world gets a taste of evil when Scotland Yard's Inspector Alleyn is called into investigate the murder of a beautiful believer-and unmaskeds an ungodly cult.