The Creeping Man Level 3 (м) (Illustrated Readers) Doyle

Why would a dog suddenly attack its master? Why would a respected Professor disappear for two weeks without telling anyone where he went? And why, upon his return, would he begin to act in a strange and scary way, creeping around the house and garden on all fours? Can brilliant detective Sherlock Holmes and his colleague Dr Watson help the Professor and solve the mystery of the Creeping Man? .