Thomas Roch was at last to be rescued from the clutches of Ker Karraje and Engineer Serko.

The rascals would not be able to utilize his invention, and nothing could prevent the warships from landing a storming party on the island, who would force the tunnel in the wall and secure the pirates! We saw no one while the two men were conveying Thomas Roch to the _Sword_, and all got on board without incident.

The lid was shut and secured, the water compartments filled, and the _Sword_ sank out of sight.

We were saved! The _Sword_ was divided into three water-tight compartments.

The after one contained the accumulators and machinery.