Once more his head appeared above the surface. He drew in a deep, reviving draught of air, even though it was salt-laden; then with a sudden effort he wrenched his right arm clear, drew back his fist, and planted a tremendous blow upon Gwennap’s temple, and his struggles ceasing he was now practically harmless.
"Pity I didn’t think of that before," thought Hythe dimly. "I wonder if I’ve killed him, but there was no other way."
"Cheer up, Hythe!" exclaimed a hearty voice that the sub recognized as Devoran’s. Turning his head the well-nigh exhausted rescuer saw close to him the chief officer and O’Shaunessey, who, having divested themselves of the greater portion of their clothing, had dived overboard to aid their comrades.
"That’s right, you hang on to me," continued Devoran, "O’ Shaunessey will look after that lubber. The captain will give him a dressing-down when we get aboard again."
Hythe was too done up to inquire why Gwennap should be reprimanded. He was only too glad to rest his hand upon Devoran’s brawny shoulder.
"We’ll be all right in a brace of shakes," said the chief officer encouragingly. "The water’s quite warm, and we are fresh enough. They are turning the ’Aphrodite’ and will bring her to windward of us."
Ten minutes later, the submarine, with her upper platform barely three feet out of water, glided slowly up to the group of immersed men. Ropes were thrown and caught by Devoran and O’ Shaunessey, and by this means Gwennap and Hythe were hauled on board. Captain Restronguet was waiting to congratulate his guest upon his heroic action, but instead he sprang forward and grasped Hythe by the arms, just in time to prevent the sub from falling helplessly to the deck.
When Arnold Hythe recovered consciousness he found himself lying on his bunk in the cabin that had been appropriated to his use. The scuttle was closed, an electric light was burning, and by the slight and peculiar oscillation of the vessel he knew that the "Aphrodite" was running submerged.
He was not alone. Sitting at the head of his bunk was Kenwyn, the second officer. He was reading a book, but hearing the sub move he replaced the volume on a shelf and asked Hythe how he felt.
"Not quite up to the mark, thanks. But what am I doing here? Ah, I remember. Have you got Gwennap safe on board?"