Two of Sherlock Holmes` most exciting, dangerous and challenging adventures are here in one volume. In "The Shadow of the Rat", a body is found floating in the river - a body that has been deliberately infected with the plague virus. Holmes and Watson find themselves seeking answers at The Bridge of Dreams, a club where a person`s darkest wish can be granted - for a price. Holmes falls under the control of a will stronger than his own which threatens the life of his closest friend Watson and leaves the government - indeed Britain itself - open to a deadly terror, the monstrous Giant Rat of Sumatra. In "The Tangled Skein", it is the autumn of 1888, and following the successful conclusion of the investigation into the affair of the Hound of the Baskervilles, Sherlock Holmes is faced with an even darker mystery. A strange package, an attempt on Holmes` life, murders on Hampstead Heath and a strange phantom lady lead Holmes and Watson to return to Devon and the bleak terrain of Dartmoor where they encounter the true embodiment of evil, Count Dracula, the Lord of the Undead.