"Four French destroyers coming up pretty fast from the south'ard, sir. Seem to be making for the flagship," was the reply.

"That's a job for us," said Erskine, who was standing on the narrow deck of the Ithuriel, waiting to go on board the Britain. "Commander, will you be good enough to deliver this to the Admiral? I must be off and settle those fellows before they do any mischief."

The commander of the destroyer took the letter, Erskine dived below, a steel plate slid over the opening to the companion way, and when he got into the conning-tower he ordered full speed.

Four long black shapes were stealing slowly towards the British centre, and no one knew better than he did that a single torpedo well under waterline would send Admiral Beresford's floating fortress to the bottom inside ten minutes, and that was the last thing he wanted to see.

A quartermaster ran down the ladder and caught the letter from the commander just as the Ithuriel moved off.

"Tell the Admiral, with Captain Erskine's compliments, that he'll be back in a few minutes, when he's settled those fellows."

The quartermaster took the letter, and by the time he got to the top of the ladder, the Ithuriel was flying through a cloud of foam and spray towards the first of the destroyers. He heard a rattle of guns, and then the destroyer vanished. The Ithuriel swung round, hit the next one in the bows, ground her under the water, turned almost at right angles, smashed the stern of the third one into scrap iron, hit the fourth one abreast of the conning-tower, crushed her down and rolled her over, and then slowed down and ran back to the flagship at twenty knots.

"Well!" said Quartermaster Maginniss, who for the last few minutes had been held spellbound at the top of the ladder, in spite of the claims of discipline, "of all the sea-devils of crafts that I've ever heard of, I should say that was the worst. Four destroyers gone in five minutes, and here he is coming back before I've delivered the letter. If we only have a good square fight now, I'll be sorry for the Frenchies."

The next moment he stiffened up and saluted. "A letter for you, Admiral, left by Captain Erskine before he went away to destroy those destroyers."

"And you've been watching the destruction instead of delivering the letter," laughed Lord Beresford, as he took it from him. "Well, I'll let you off this time. When Captain Erskine comes alongside, ask him to see me in my room at once."