"I wish the Frome would blow this vessel out of the water," thought the mid., but instantly it occurred to him to wonder what would happen to Fielding and the rest of the captives if the destroyer did open fire. Beyond doing damage to the unarmoured portion of the pirate ship, the Frome's comparatively light ordnance would make little or no impression upon her gigantic antagonist.

"She's following us, by Jove!" exclaimed the mid. "I wish I had a pair of binoculars, and was able to use them. I wonder what Drake is going to do?"

Yes, the Frome was tearing along, yet gaining slowly, for the stokers of the Independencia were toiling their hardest, pumping crude petroleum into the complex array of burners. Columns of black smoke, tinged with flame, shot from the tall funnels of the cruiser. Every possible inch that could be got out of her was made use of. Her neglected engines were beginning to run more smoothly. She might hold her own, or might even shake off the pursuing destroyer.

The midshipman could not help noticing the lack of discipline amongst the motley crew. Seamen, with a couple of revolvers stuck in their belts, and cigars in their mouths, would stroll aimlessly along the quarter-deck, give a glance at the British destroyer, and curtly question their officers as to the position of affairs. Some of the latter were not above accepting cigars and cigarettes from the men. The officers were decked out in gaudy uniforms, while the men wore coarse canvas jumpers and trousers. Some wore canvas shoes, others rope-soled boots, but the majority went bare-footed. The only person who seemed to be able to exercise any real authority was Juan Cervillo.

Nearer and nearer drew the Frome till she was but a couple of miles astern, steering a course well on the Independencia's port quarter, and studiously avoiding her wake. The destroyer did not court further trouble by running over a grass hawser or other obstruction purposely thrown over by the chased ship.

Cardyke felt much easier in his mind when he saw that the Frome was gaining. He had such a supreme faith in his comrades that he felt certain that rescue was merely the question of a few hours at the very outside. Of what was to be done to effect this desirable business he had no idea; but it would be managed all right. Before sunset he would be having dinner in the destroyer's wardroom.

Presently Cervillo climbed up to the after-bridge, and, taking his stand close to where Fielding was secured, watched the destroyer through a telescope. After a lengthy examination he called to one of his officers, who in turn gave voluminous directions to a party of seamen. In a leisurely manner they began to bring up ammunition for some of the quick-firers mounted amidships on the starboard side of the ship.

Cardyke could see that the muzzles were depressed and trained slightly abaft the beam; but unless the cruiser ported her helm it would be a matter of impossibility to fire upon her pursuer.

Bang! A sharp report, followed by a shrill screech of the projectile, announced that the Frome had opened fire with one of her foremost guns. The missile struck the water at less than two hundred yards to starboard, threw up a column of water thirty feet in the air, and ricochetted thrice ere it dipped for the last time.

It was purposely aimed wide of the chase, but it showed that the destroyer meant business.