"That is certainly a possible point of view. On the face of it you must admit, however, that it is very strange that his two servants should have been in a conspiracy against him and should have attacked him on the one night when he had a guest. They had him alone at their mercy every other night in the week."
"Then why did they fly?"
"Quite so. Why did they fly? There is a big fact. Another big fact is the remarkable experience of our client, Scott Eccles. Now, my dear Watson, is it beyond the limits of human ingenuity to furnish an explanation which would cover both of these big facts? If it were one which would also admit of the mysterious note with its very curious phraseology, why, then it would be worth accepting as a temporary hypothesis. If the fresh facts which come to our knowledge all fit themselves into the scheme, then our hypothesis may gradually become a solution."
"But what is our hypothesis?"
Holmes leaned back in his chair with half-closed eyes.
"You must admit, my dear Watson, that the idea of a joke is impossible. There were grave events afoot, as the sequel showed, and the coaxing of Scott Eccles to Wisteria Lodge had some connection with them."
"But what possible connection?"
"Let us take it link by link. There is, on the face of it, something unnatural about this strange and sudden friendship between the young Spaniard and Scott Eccles. It was the former who forced the pace. He called upon Eccles at the other end of London on the very day after he first met him, and he kept in close touch with him until he got him down to Esher. Now, what did he want with Eccles? What could Eccles supply? I see no charm in the man. He is not particulary intelligent--not a man likely to be congenial to a quick-witted Latin. Why, then, was he picked out from all the other people whom Garcia met as particularly suited to his purpose? Has he any one outstanding quality? I say that he has. He is the very type of conventional British respectability, and the very man as a witness to impress another Briton. You saw yourself how neither of the inspectors dreamed of questioning his statement, extraordinary as it was."
"But what was he to witness?"
"Nothing, as things turned out, but everything had they gone another way. That is how I read the matter."
"I see, he might have proved an alibi."
"Exactly, my dear Watson; he might have proved an alibi. We will suppose, for argument's sake, that the household of Wisteria Lodge are confederates in some design. The attempt, whatever it may be, is to come off, we will say, before one o'clock. By some juggling of the clocks it is quite possible that they may have got Scott Eccles to bed earlier than he thought, but in any case it is likely that when Garcia went out of his way to tell him that it was one it was really not more than twelve. If Garcia could do whatever he had to do and be back by the hour mentioned he had evidently a powerful reply to any accusation. Here was this irreproachable Englishman ready to swear in any court of law that the accused was in the house all the time. It was an insurance against the worst."
"Yes, yes, I see that. But how about the disappearance of the others?"