Then the boy stepped into the pilot house, touched a button and the boat sank amid swirling waters toward the bottom of the shaft. Even then there was no scurrying of feet as we had expected, and while the boy remained to direct the boat I slid from cabin to cabin in futile search for some member of the crew. The craft was entirely deserted.

Such good fortune seemed almost unbelievable.

When I returned to the pilot house to report the good news to my companion he handed me a paper.

"This may explain the absence of the crew," he said.

It was a radio-aerial message to the commander of the submarine:

"The slaves have risen. Come with what men you have and those that you can gather on the way. Too late to get aid from Omean. They are massacring all within the amphitheatre.

Issus is threatened. Haste.

"ZITHAD"

"Zithad is Dator of the guards of Issus," explained the youth.

"We gave them a bad scare--one that they will not soon forget."

"Let us hope that it is but the beginning of the end of Issus," I said.

"Only our first ancestor knows," he replied.

We reached the submarine pool in Omean without incident.