“I am not at liberty to say what caused the explosion,” he announced. “It can not be told at present. All I ask of you—all that your officers ask of you—is that you remain quiet. We shall soon start again, to be quickly back at the dock.”

“For how long?” asked several.

That seemed to strike a popular chord.

“I am sorry, but I am unable to answer that question,” replied the colonel with a smile. “I know you all want it answered, and I will say that if it is found it will require too long to repair the damage to this transport another will be provided.”

There was a cheer at this, and the colonel and his staff looked relieved. The danger of a panic and a rush for the boats seemed past. But many rumors were still in circulation, and that of a German spy or some Hun sympathizer having tried to sink the transport and the troops gained each hour.

It seemed a very long time, though it was not more than two hours, before the ship was under way again. But she limped along under less than half steam, and many anxious hearts were glad when the dock they had recently left loomed in sight again.

The accident, of whatever nature it was, had happened when the Sherman was not far from shore, and, even had it been necessary to launch the lifeboats and rafts, it is probable that all on board would have been saved.

But there was always danger, especially when the wounded men were considered, and there were not a few of them on board. Consequently, it was with a feeling of relief that all observed the craft being warped back to the berth she had so lately left.

“Now the question arising is: What——”