Abdullah Khan is an Indian man and one of the signatories of “the sign of the four” and the man who told Jonathan Small about the Agra treasure. The plan to kill the merchant carrying the treasure was mostly Abdullah’s idea, but he was imprisoned for the murder before he could enjoy his riches.
Abdullah Khan Character Timeline in The Sign of the Four
The timeline below shows where the character Abdullah Khan appears in The Sign of the Four. The colored dots and icons indicate which themes are associated with that appearance.
Chapter 3 — In Quest of a Solution
...the cross, the paper reads, “the sign of the four – Jonathan Small, Mahomet Singh, Abdullah Khan , Dost Akbar.” Though he isn’t sure of the significance of the paper, Holmes tells... (full context)
Chapter 12 — The Strange Story of Jonathan Small