The List Of Seven by Mark Frost

A young physician and aspiring writer is drawn into a dark conspiracy when a mysterious list links a string of brutal crimes to a secretive cabal; racing across fog-bound London and the English countryside, he and a small band of allies unravel occult rituals, confront a charismatic, murderous aristocrat, and face a chilling, supernatural threat, in a briskly paced blend of historical detail, detective intrigue, and pulpy adventure.

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