All were now eagerly on the lookout for the wreck.

The searchlight’s rays were sent in every direction through the ocean depths.

Suddenly Captain Bell, who was forward on the lookout, shouted:

“Wreck ahoy!”

The announcement went through the boat with startling force.

Everybody was at once on the qui vive.

And now dead ahead was seen a huge black mass looming up through the water. It was a sunken ship.

Of course all believed it to be the Vestal Virgin.

But the wreck was so covered with silt and seaweed that its character could not well be identified.

The submarine boat sailed around it twice, then Frank allowed it to come to a rest on the ocean floor of white sand.