nation in street or building. The
glow from the water had appeared close to the wall of the empty building
through which his four assailants of the night before had made good
their escape.

As he stood there, slouching in the shadows, Johnny gave a great start;
the light had appeared again. Beyond question it was beneath the water,
not shining upon it. From this vantage point the light seemed stronger.
It appeared for a few seconds, then disappeared again. Johnny scratched
his head. What could it mean? For some time he stood in a brown study,
then he laughed silently to himself.

"Probably phosphorescent substances being sent out from the drainpipe of
a factory or chemical laboratory," he decided.

At that instant he was all alert. His hand closed on his automatic. A
stealthy footfall had sounded on the bridge.

"Oh! It's you," he whispered a moment later.

Hanada grinned as he gripped Johnny's hand. "Thought I might miss you,"
he whispered.

The two were soon engaged in animated conversation. Their talk had to do
with Johnny's adventure of the night before and the information
regarding the Radicals furnished by Jerry the Rat. Hanada appeared
unduly excited at the news.

"It seems," said Johnny, "that there must be a national conference of
Radicals meeting somewhere near this river. Perhaps our old friend, the
Russian of Vladivostok, is a delegate."

Hanada shot him a swift glance, as if to say: "How much do you know
about this matter anyway?"

But for some time the Japanese did not speak; then it was concerning an
entirely different affair. Cio-Cio-San had been visited by a fellow
countryman who, although wholly unknown to her, had appeared to know a
great deal about her private business. He had informed her that she had,
within the last year, been robbed of some very valuable property and
professed to have a knowledge of its whereabouts. If she would accompany
him he would see that it was restored to her. The actions of the man had
aroused her suspicions and she had refused to go. However, she had asked
him to give her a day to think it over. He was to return at nine this
night.

"Some nifty little mind reader, that Jap," smiled Johnny. "Tell him to
come round and locate my long lost uncle's buried treasure."

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