The Adventure of the Speckled Band the snake wrong, a theory that the swamp adder was an artificial hybrid between the Mexican Gila monster ("Heloderma suspectum") and "Naja naja". His speculation suggests that Doyle might have hidden a double-meaning in Holmes' words. What Holmes said, reported by Watson, was "It is a swamp adder, the deadliest snake in India"; but Klauber suggested what Holmes really said was "It is a "samp-aderm", the deadliest skink in India." "Samp-aderm" can be translated "snake-Gila-monster": "Samp" is Hindi for snake, and the suffix "aderm" is derived from "heloderm", the common or vernacular name of the Gila monster generally used by
The Adventure of the Speckled Band Calcutta, India and was married to Helen's late mother who was a widow living there. Dr. Roylott is the impoverished last survivor of what was a wealthy but violent, ill-tempered and amoral Anglo-Saxon aristocratic family of Surrey, and has already served a jail sentence in the past for killing his Indian butler in a rage. Helen's twin sister had died almost two years earlier, shortly before she was to be married. Helen had heard her sister's dying words, "The speckled band!" but was unable to decode their meaning. Helen herself, troubled by the perplexing death of her sister, is now