"Frank's a queer fellow," said Hugh finally.
"He certainly is," Bob agreed.
"Do you think he knows what has happened to his father?"
"I doubt it. I don't believe he would have been so surly if he had known."
"What do you think about the alligator?"
"I'm sure I don't know," said Bob. "It must mean something though, and
Frank must know what it is. Did you see how pale he got when he saw it!"
"Maybe it's the sign of some secret society like the Black Hand, or the
Ku Klux Klan, or something like that."
"Still I can't understand why they should send a warning to Mr. Wernberg if he is a member of the gang."
"It may not have been a warning," said Hugh. "Perhaps it was just a message of some kind or another."
"Then why should Frank have been so scared when he saw it?"