“We aren’t going to take it away,” he explained, turning to Sylvia. “Sir Clinton asked us to pick it out—that’s all. He’ll be here shortly and you can learn from himself what he intends to do. But in any case, I think it ought to be in a safer place than this. As you say”—he turned again to Arthur—“it’s dangerous stuff.”

Sylvia agreed immediately.

“It was rather careless to leave it about like that if it’s poisonous,” she confirmed.

Wendover’s mind had been busy in the meanwhile. He had noted for Sir Clinton’s benefit that Arthur evidently knew the nature of the stuff, although there was no label on the specimen. If Arthur knew, then the chances were that other people knew also. He glanced at the contents of the pot in his hand, and he thought he could detect that some of the stuff had been removed. The original surface seemed to have been disturbed. Then he remembered that Ardsley had volunteered an account of how he had run short of curare and had taken some of Roger’s specimen. That might account for the disturbance. Another thought occurred to him, and he asked permission to inspect the museum.

“Do you mind if I look round the shelves?” he asked Sylvia. “I’ve never been in this place before, you know. Your uncle seems to have collected a lot of specimens.”

Sylvia accompanied him in his tour of inspection; but she could throw little light on the various objects.

“Hardly anything’s labelled, as you see,” she pointed out.

“Once or twice I offered to label them all for Uncle Roger; for it seems so silly to have a lot of things there with no explanation, doesn’t it?”

They moved down the room, scanning the shelves. Ardsley remained near the door, grimly aloof from the rest of the group. Arthur hovered uncertainly about the room, evidently keeping his eye on the visitors as though troubled by suspicions of their motives.

“This is a dreadful business about my uncles,” Sylvia said in a low voice, when she and Wendover had moved away from the others. “I was terribly shocked when I got back here and heard what had happened. I’m not going to pretend I was very fond of either of them—they always seemed to me different from the rest of us, somehow—but I liked them in a way; and it was horrible to come back and find that while I’d been enjoying myself in the afternoon, they’d been . . .”