"It couldn't have been someone-" Daniel shook his head weakly, as if trying to reject something. Suddenly he exclaimed fiercely, "I can't believe that! One of them? Those two girls or Larry or Brady?"
"Or you, sir," Wolfe said dryly. "You were there. As for your trying to get the police started on it, you may be more devious than you look. Save your indignation. Calm yourself. Your digestive processes will make a botch of that soup and cheese if you don't. So, Mr. Cramer, I give you that. It was an impromptu job. Not that it was unpremeditated; far from it; it was carefully prepared; an iodine bottle had been emptied and washed and replenished with argyrol and an army of tetanus germs."
Wolfe compressed his lips. "Very ugly. It would take an extremely unattractive person to think of that, let alone do it. It was done. I presume a situation was to be created requiring the use of the iodine; in fact, there is reason to believe that it had been created, or was in process; but the accident on the terrace provided an opportunity too good to be missed. From the standpoint of technique, it was brilliantly conceived and managed. Only two things needed to be done: drop a piece of glass into Miss Huddleston's slipper, which was quite simple with everyone jostling around picking up the pieces, and substitute the bottle of bogus iodine for the one that was in the cupboard. With no risk whatever. If Miss Huddleston shook the glass out of her slipper before putting it on, if for any reason she didn't cut herself, the bottle could be switched again and nothing lost. There is a point, of course: if the bottle in the cupboard had a different kind of label-"
"They all had the same label," Cramer rumbled.
"All?"
"Yes. There were seven bottles of iodine in that house, counting the kitchen, and they were all the same, size and shape and label."
"They bought it wholesale," I explained, "on account of Mister and the bears."
"That," Wolfe said, "is precisely the sort of thing you would know, Mr. Cramer. Seven. Not eight. Seven. And of course you had it all analyzed and it was all good iodine."
"It was. And what the hell is there in that to be sarcastic about? It clears up your point, don't it? And I might mention another point. The murderer had to leave the terrace, go in the house, between the time the glasses got broken and the time Miss Huddleston cut herself, to switch the iodine bottles."