When Sherlock Holmes and Dr Watson return to London after a fortnight away, they are met with an unsettling mystery. Clients who sought their help have now withdrawn their requests, claiming another detective has solved their problems.
The newspapers are filled with praise for this new detective, Mr Clarence O'Connell. According to reports, he has cracked cases that Holmes supposedly ignored. But something about O'Connell does not sit right with Holmes. Who is this man, and why does he seem determined to outshine the great detective? As Holmes and Watson investigate further, they uncover a troubling pattern that suggests O'Connell is not merely solving cases but orchestrating something far more sinister. With Holmes' reputation hanging in the balance and a dangerous scheme unfolding, can he unmask the truth before his latest adversary succeeds in bringing him down?外文書商品之書封，為出版社提供之樣本。實際出貨商品，以出版社所提供之現有版本為主。部份書籍，因出版社供應狀況特殊，匯率將依實際狀況做調整。
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