"Don't give the lady a title to which she has not and never had any legal right, Sir Henry. If it had ever occurred to you to emulate my example to-night and search the lady's effects, you would have found that she was christened Enriqua Dolores Torjado, and that she was married to Señor Filippo Bucarelli here, at Valparaiso, in Chili, three years ago, and that her marriage to you was merely a clever little scheme to get hold of a pot of money and share it with her rascally husband." "It's a lie!" snarled out the male prisoner. "It's an infernal policeman's lie! You never found any such thing!" "Pardon me, but I did," replied Cleek serenely. "And what's more, I found the little phial of coriander and oil of sassafras in your room, señor, and--I shall finish off the Mynga Worm in another ten minutes!" Bucarelli and his wife gave a mingled cry, and, chained together though they were, made a wild bolt for the door; only, however, to be met on the threshold by the local constable, to whom Cleek had dispatched a note some hours previously. "Thank you, Mr. Philpotts; you are very prompt," he said. "There are your prisoners nicely trussed and waiting for you. Take them away--we are quite done with them here. Sir Henry"--he turned to the baronet--"if Black Riot is fitted to win the Derby she will win it, and you need have no more fear for her safety. No one has ever for one moment tried to get at her. You yourself were the one that precious pair were after, and the bait was your life assurance. By killing off the watchers over Black Riot one by one they knew that there would come a time when, being able to get no one else to take the risk of guarding the horse and sleeping on that bed before the steel-room door, you would do it yourself; and when that time came they would have had you." "But how? By what means?" "By one of the most diabolical imaginable. Among the reptiles of Patagonia, Sir Henry, there is one--a species of black adder, known in the country as the Mynga Worm--whose bite is more deadly than that of the rattler or the copperhead, and as rapid in its action as prussic acid itself. It has, too, a great velocity of movement and a peculiar power of springing and hurling itself upon its prey. The Patagonians are a barbarous people in the main and, like all barbarous people, are vengeful, cunning, and subtle. A favourite revenge of theirs upon unsuspecting enemies is to get within touch of them and secretly to smear a mixture of coriander and oil of sassafras upon some part of their bodies, and then either to lure or drive them into the forest; for by a peculiar arrangement of Mother Nature this mixture has a fascination, a maddening effect upon the Mynga Worm--just as a red rag has on a bull--and, enraged by the scent, it finds the spot smeared with it and delivers its deadly bite." "Good heaven! How horrible! And you mean to tell me--"