e rock, about a hundred fathoms under water,
running for they had no idea how far under the land. They stayed to
guard the hole while we combed the land. It took us a week to locate the
place, but we traced some truck loads of food and finally found it. This
tunnel ran under the land for a mile and then ended in a large cave
underground. The Young Labor party had established a regular receiving
depot there, and took the aliens from the sub and kept them for a day or
two until they had a chance to load them into trucks and run them into
Boston or some other town in the night.

"Once we had the place spotted, we sent a gang in and captured the whole
works without any trouble. The underground cavern had no natural opening
to the surface, but one had been made by blasting. We captured the
whole lot and then sealed the end of the hole with rock and concrete.
That was the end of the affair."

"Thank you, Commander; you have given us a very graphic description of
it. I suppose you could find the entrance which was sealed up?"

* * * * *

"Easily. I led the raiding party. I forgot to mention one blunder we
made. Evidently some word of our plans leaked out, for the sub which was
guarding the outer end of the tunnel was called away by a radio message
supposed to be from the Navy Department. It had gone only a short
distance, however, when the commander smelled a rat and made his way
back. He was too late. He was just in time to see the sub emerge from
the hole and head into the open sea. He gave chase, but the other sub
was faster than the Navy boat and it got clear away. The leader of the
gang must have been on it, for we didn't get him."

"Who was the leader?"

"From some records we captured, his name was Ivan Saranoff. I never saw
him."

"Saranoff?" said Dr. Bird thoughtfully. "The name seems familiar. Where
have I--Thunder! I know now. He was at one time a member of the faculty
of St. Petersburg. He was one of the leading biologists of his time.
Carnes, we've found our man."

"If you are thinking of Saranoff, I am afraid you are mistaken, Doctor,"
said Commander Minden. "Neither he nor his submarine have ever been
heard of since and it has been generally conceded that they were lost at
sea. We had some pretty rough weather just after that affair."

"Rough weather doesn't mean much to a sub, Commander. I expect that he's
our man. At any rate, the place we want to go is the end of that