“You’re pretty near right on both counts. The main thing that’s puzzling me is whether or not Stebbins is mixed up in it.”
“What makes you think he isn’t?”
“I didn’t say I did think so, but as I was saying awhile ago, he’s not that kind of a guy.”
“Well, it seems to me—” Jack began, when he was interrupted by a sound which seemed to come from the direction of the lake.
“Listen,” he whispered.
“Sounds like a groan,” Rex replied after a moment.
“Let’s get up a bit nearer the cabin,” Jack suggested.
Followed by Rex he crept carefully forward on his hands and knees. It was very dark now, as the moon had set some time before and they had to feel their way as they advanced foot by foot.
“I think I can see the cabin,” Jack whispered, after they had gone a few yards.
The groaning had been repeated several times since they had first heard it, and now they were certain that the sound came from the cabin.