"Any one else?" asked Jack.
"A man used to come sometimes at night. Pooler thought I never saw him, but I did--and heard who he was, too."
"What was his name?" asked Mont, with just the slightest tremor in his voice.
"Mr. Gray--Felix, Pooler called him."
Mont looked at Jack in deep perplexity.
"There is surely a mystery here," he said.
"You are right," returned the young machinist; "and who knows but what it may concern both of us?"
At this juncture Meg uttered an exclamation.
"There's a boat comin' over!" she cried. "I guess it's Pooler gettin' back!"
CHAPTER XV.