Sherlock Holmes is approached by Mrs. Adelaide Savage who is concerned about her husband, Victor. He is a successful and rich financier by profession but is a poet at heart. He has taken to using opium regularly and has been acting strangely, she believes, as a result. Holmes accepts to look into the case and soon spends a weekend at their country estate. There he finds that Culverton Smith, Savage's cousin, is also in residence. A bookish man, whose only accomplishment is to be known as the principal authority on a very rare tropical poison, Smith's behavior is odd from the outset. Savage is clearly a sick man and when he dies, Holmes surprises Watson - who is certain Smith responsible - by seeming somewhat nonchalant about it all. When Holmes himself becomes deathly ill, apparently with the same affliction that struck Savage, he summons him to Baker Street to close the case.
Did You Know?
Mister Savage, sir. I didn't know, sir. Sir, I didn't know.
It's all right, Benson. Last minute decision.
Version of The Dying Detective