“I’m sure of it, Mrs. Weems! Don’t you see? The drawing is a copy of the tattoo which both Anchor Joe and John Munn had on their backs!”

“Yes, it does look the same as Joe’s marking,” conceded the housekeeper. “But what does it mean? Why was it sent to Fenestra?”

“I wish I knew.”

“One thing is clear. That boatman your father hired is a downright scamp.”

“He’s wanted by the government. We know that. But Fenestra may be a rascal, too. Why should Anchor Joe threaten him unless he’s done something he shouldn’t?”

“Why indeed? This is a case for the police, not one for you or me,” declared Mrs. Weems with finality. “I am ready to leave here whenever you are. I’ve decided not to bother giving Fenestra notice.”

“You can’t go now. You can’t!” moaned Penny. “Stay until after Thursday, at least. I’m positive everything will be cleared up by then.”

“Why Thursday?”

“Well, I have a little matter coming up on that day. Besides, I’ve sent off a letter which may help solve the mystery. Please, Mrs. Weems, do this one favor and I’ll never ask another.”

“Until next time, you mean. But to please you I’ll stay until Friday. Not a day longer. However, I warn you, if I see Anchor Joe prowling about, I shall summon the sheriff.”