"Well, Hugh, what do you think about that?" demanded Bob.
Hugh looked blankly at the rude drawing on the back of the envelope. "I don't know," he said slowly. "Why should they send Mr. Wernberg one of these?"
"Unless it's a message from one member of the gang to another."
"But Mr. Wernberg is in the hospital."
"The others may not know that."
"That's true," Hugh agreed. "This handwriting is the same as that on the messages that came to your father and to Heinrich too."
"I know it, and the same as in the list we found in the old house."
"What do you suppose the alligator stands for?"
"I've no idea. Why did they steal Percy?"
"Anyway we'd better ring the bell and deliver our message. We can't stand out here on the porch all day, you know."