The Three Impostors; or, The Transmutations is an episodic horror novel by Arthur Machen.

Contents:

Prologue

Adventure of the Gold Tiberius

The Encounter of the Pavement

Novel of the Dark Valley

Adventure of the Missing Brother

Novel of the Black Seal

Incident of the Private Bar

The Decorative Imagination

Novel of the Iron Maid

The Recluse of Bayswater

Novel of the White Powder

Strange Occurrence in Clerkenwell

History of the Young Man with Spectacles

Adventure of the Deserted Residence