"Just look there, now!" said Castellan, pointing ahead to where huge shapes, enveloped in a mist of flame and smoke, were circling round each other, vomiting their thunderbolts, like leviathans engaged in a veritable dance of death.

"D'ye see that!" continued Denis. "What good would we be among that lot? The Ithuriel hasn't eyes on her that can see through the dark water, and if she had, how would we tell the bottom of a French or German ship from a Britisher's, and a nice thing it would be for us to go about sinking the King's ships, and helping those foreign devils to land in old England! No, Erskine, this ship of yours is a holy terror, but she's a daylight fighter. Don't you see that we came too late, and wait till to-morrow we can't, and there's the Duke's orders.

"I'll tell you what," he continued more cheerfully, as the Ithuriel cleared the southern part of the battle, "if we could get at the transports we might have some fun with them, but they'll all be safe enough in port, loading up, and there's not much chance that they'll come out till our boys have been beaten and the roads are clear for them. Then they'll go across thinking they'll meet their pals from Portsmouth and Folkestone. Now, you see that line out there to the north-eastward?"

"Yes," said Erskine, looking towards a long row of dim shapes which every now and then were brought out into ominous distinctness by the flashes of the shells and searchlights.

"Well," continued Castellan, "if I know anything of naval tactics, that's the Reserve lot waiting till the battle's over. They think they'll win, and I think so too, thanks to those devil-ships my brother has made for them. Even if Beresford does come up in time, he can no more fight against them than anybody else. Now, there's just one chance that we can give him, and that is sinking the Reserve; for, you see, if we've only half a dozen ships left that can shoot a bit in the morning, they won't dare to put their transports out without a convoy, and unless they land them, well, they're no use."

"Castellan," said Erskine, putting his hand on his shoulder, "you'll be an admiral some day. Certainly, we'll go for the convoy, for I'll be kicked if I can stand here watching all that going on and not have a hand in it. We'd better sink, and use nothing but the ram, I suppose."

"Why, of course," replied Castellan. "It would never do to shoot at them. There are too many, and besides, we don't want them to know that we're here until we've sent them to the bottom."

"And a lot they'll know about it then!" laughed Erskine. "All right," he continued, taking down the receiver. "Courtney and Mac can see to the sinking, so you'd better stop here with me and see the fun."

"That I will, with all the pleasure in life and death," said Castellan grimly, as Erskine gave his orders and the Ithuriel immediately began to sink.

Castellan was perfectly right in his conjecture as to the purpose of the Reserve.