There was no shoal nor rock near; for the lake in this part is eighty or ninety feet deep.

The schooner with both her bow and her side badly broken, ran great danger of sinking.

She managed, however, to reach the shore before her decks were completely submerged.
"When the 'Markel' had been pumped out and hauled up on shore, an examination showed that she had received a blow near the bow as if from a powerful ram.
"From this it seems evident that there is actually a submarine boat which darts about beneath the surface of Lake Kirdall with most remarkable rapidity.
"The thing is difficult to explain.

Not only is there a question as to how did the submarine get there?
But why is it there?
Why does it never come to the surface?
What reason has its owner for remaining unknown?
Are other disasters to be expected from its reckless course ?" The article in the Evening Star closed with this truly striking suggestion: "After the mysterious automobile, came the mysterious boat.

Now comes the mysterious submarine.
"Must we conclude that the three engines are due to the genius of the same inventor, and that the three vehicles are in truth but one ?".