“Now,” said Jack, “when we first entered here, do you recall whether the air was stale?”
Wallace scratched his head. “I really don’t remember,” he answered.
“That proves that the air was not stale but fresh.”
“How do you figure it out.”
“Because if the air had been stale, it would have hit you right away and you would remember it.”
“What are you trying to prove?” demanded Paul.
Jack exclaimed. “Standing here I felt a very slight draft. That’s clue number one. Secondly, if the air was fresh when we first entered here, then it proves that air is coming in from somewhere.”
“Gee,” exclaimed Paul, “that’s very good reasoning.”
“Yes. But there’s more to it. I’m convinced that there is an exit leading to the outside from this inner room. The reason for it is obvious. The gang had to have an avenue of escape if they were ever cornered.”
“That’s very logical,” added Wallace. “Let’s look for it.”