"That is as you please, Sir John," he answered, looking at me curiously.

For a minute I did not see what he meant, but then a great idea dawned upon me.

"The Pirate Ship!" I burst out.

"I have always heard that Sir John Custance is a skilled pilot," he said with a bow.

I saw it all clearly. There was a gorgeous, dramatic end to it all well within my grasp! It would be something to make the whole world gasp! The Pirate Ship was, I knew, already loaded with the proceeds of the pirates' robberies. It was not only full of loot, but prepared in every way for a long cruise. Helzephron and his ruffians had planned an almost immediate escape from the cave to some new refuge of which I had heard them speak. Doubtless, if things had gone right with them, they would have been off by now, with my mangled body tossed in the whirlpools below and Constance still a prisoner. Helzephron would have mounted to a great height, and trusted to his immense superiority in speed over all the airships in existence for escape. I have little doubt that, had things fallen out as he planned, he would have been able to carry out his scheme. But God disposes....

There was nothing, so I thought at the moment, to prevent me from piloting the airship out of its lair. Once in the sky I could make a bee-line for Plymouth, and get there in a little more than half an hour—if it was indeed true that the mysterious ship could do her two hundred and forty M.P.H. To swoop down to Plymouth sea-drome with Constance, the Pirate Ship and the recovered treasure! That would, indeed, be a triumph such as is given to few men to experience. I have a fairly vivid imagination, and I saw it all in one radiant picture.

"Let's go and have a look at the ship at once," I said, and almost ran back into the cavern, where she towered up and threw black velvet shadows in the fierce blue light that streamed down from the suspended arcs. Danjuro followed.

As I swung myself over the side and descended a short ladder, I found myself in a roomy main cabin. A switch to my hand illuminated it, and even then I saw that the ship had been designed by a master hand. Below the port-holes, filled with toughened glass and provided with shutters of a design that was new to me, ran a continuous seat of woven camels' hair cord, easily convertible into sleeping bunks for half a dozen people. There was an electric stove of polished aluminium for cooking, and an electric radiator for warming the cabin, clustering round a central supporting column. I saw also that there was a very complete telephone installation connecting this main cabin with the pilot's room forward.

Under the seats was a collection of wooden cases and a box of japanned steel, which I judged, and rightly, contained the treasure taken from the Albatros and the Atlantis. A sliding door aft led into a store-room, which seemed to contain everything necessary for a cruise of several days. I noticed boxes of expensive cigars, bottles of whisky and liqueurs, tinned oysters, larks, asparagus, such as wealthy yachtsmen provide themselves with. The dogs did themselves well!

Leading out of this was a final cabin fitted with tools of every sort, a rack of automatic rifles and pistols, and several thousand rounds of small-arms ammunition. Here also, with a padded door, was a little compartment for the wireless operator, and I pictured one of the black-hearted scoundrels sitting there and picking up the messages from airships of the trade routes with a grin upon his face.