The Maple White Terror

From the files of Dr. John Watson comes strangest case on record of the famous detective Sherlock Holmes... An inhuman terror stalks the gaslit, fogged streets of London. The one man who has witnessed it lies dead, presumed the victim of a madman. But Holmes knows that the truth is far more bizarre. With his peerless deductive skills, Holmes traces the evidence to the famed but controversial expediton of Professior George Edward Challenger ---and the lost world of Maple White Land. A rival of Challenger's, it seems, has launched a return exploration of that fabled, prehistoric land of antediluvian monsters--and may have let loose a terror from the primeval ages upon the streets of turn-of-the century London...