“A man!” gasped George. “It was a man!”
“That’s what it was,” added Bert.
“Well, what do you know about that?” demanded Jack. “Was he sneaking around this cabin?”
“That’s about it,” answered Tom.
“But who was he?”
“That’s for us to guess,” went on the young hunter. “But I fancy I can come pretty near it.”
“You mean Professor Skeel?” asked Bert.
“Him, or one of his two friends.”
“But what would he, or they, be doing around our cabin?”