However, though he passed the matter off as a jest, he was doing some
very serious thinking about this rather strange affair. He had never
told Hanada about the diamonds. Neither had he told of the note which
had been thrust under the door. Now he remembered that Jerry the Rat had
spoken of a Jap as a member of the Radicals, and he wondered if
Cio-Cio-San's visitor was the same man. If that were so, then what was
his game? Was he planning to lead Cio-Cio-San into a trap? Certainly if
the treasure the strange Jap had spoken of as having been stolen from
the Japanese girl was the envelope of diamonds, and they had hoped to
recover them from Johnny that night, they would have no intention of
restoring them to Cio-Cio-San.

"I'd advise her, if I were you," said Johnny slowly, "to find out as
much as she can, and not take too many chances. The man may be one of
the Radicals, and he may be using the supposed treasure as a decoy. At
the same time, if she handles the affair discreetly enough, she may be
able to assist you in locating the Russian and his band, which, I take
it, is your chief end and aim in life just now."

Hanada sent him another penetrating glance. "You have guessed that
much," he admitted. "Well, soon I may be able to tell you all. In the
meantime, if you need more money to pay this Jerry--Jerry, what was it
you called him?"

"Jerry the Rat."

"Yes, yes, Jerry the Rat. If you need more money for him, I can get you
more, plenty more. But," the lines of his face grew tense, "we must find
them and soon, or it may be too late. We must act quickly."