This story t[展开]

　 　　This story tells about a well-known detective Sherlock Holmes and his devoted friend Doctor Watson. They investigate extremely intricate and com licated case about the ex losion in the Admiralty and disa earance of the to -secret a ers from the safe. You'll meet ins ector Lestrade, missis Hudson, head of the secret de artment Admiral Benbow and mysterious little chimney swee s. [收起]