"N—no. At least, not by itself. You can get it mixed up with other drugs quite easily. I saw an ad in the Daily Views only this morning, offering a pill with half a grain of digitalin in it."
"Did you? where?—oh, that! Yes, but it's got nux vomica in it too, which is supposed to be an antidote. At any rate, it bucks the heart up by stimulating the nerves, so as to counteract the slowing-down action of the digitalin."
"H'm. Well, put down Miss Dorland under Means with a query-mark. Oh, of course, Penberthy has to go down under Means too. He is the one person who could get the stuff without any bother."
"Right. Means: No. 1, Dr. Penberthy. Opportunity: No. 1, Dr. Penberthy, No. 2, Miss Dorland. We'll have to put in the servants at Lady Dormer's too, shan't we? Any of them who brought him food or drink, at any rate?"
"Put 'em in, by all means. They might have been in collusion with Miss Dorland. And how about Lady Dormer herself?"
"Oh, come, Peter. There wouldn't be any sense in that."
"Why not? She may have been planning revenge on her brother all these years, camouflaging her feelings under a pretense of generosity. It would be rather fun to leave a terrific legacy to somebody you loathed, and then, just when he was feelin' nice and grateful and all over coals of fire, poison him to make sure he didn't get it. We simply must have Lady Dormer. Stick her down under Opportunity and under Motive."
"I refuse to do more than Opportunity and Motive (query?)."
"Have it your own way. Well now—there are our friends the two taxi-drivers."
"I don't think you can be allowed those. It would be awfully hard work poisoning a fare, you know."