“But are you any good at shadowing a man as artful and slippery and suspicious as Zouche?” I questioned sternly. “Think for a moment what it means to your own future if you fail.”

“I shall not fail,” said Casteno decisively, starting to make a bee line for the trap-door, through which he had entered the recess. “I have tracked scores of men in my time in the old, wild days in Mexico, when to be discovered as a spy meant that you were caught up by a lasso and strung to the nearest tree, whilst sympathising neighbours took pot-shots at you out of their revolvers. Just trust to me, and go and conduct Camille Velasquon from the vessel I mentioned to St. Bruno’s in Hampstead—that will require all your nerve, your daring, and your resolution!”

“But how shall I know how you get on? When shall I hear from you? Through what channel can we arrange a course of combined action?” I queried.

“I will communicate with you on your return from Southampton at your office in Stanton Street. If I can write to you I will. Otherwise I will have recourse to the telegraph office. But have no fear. I know the hunchback too well of old to let this slippery card pass through my fingers a moment sooner than I intend he should.” And with these strangely suggestive words he waved me an adieu, and next second had disappeared.

Time, too, was much too precious to waste. Already, as the Spaniard had engaged me in this conversation, I had caught the sounds of movement and consultation in the room beneath, and, although I would have dearly liked to learn how he could ever have met Zouche in such intimate circumstances as he indicated, and also what was the secret of his startling likeness to Paul, that wicked-looking youth beneath, I realised that I needed every second to watch the chief actor in our drama, the hunchback. So again I bent over the hole in the ceiling, and again I peered into the misty depths of the parlour and watched what this pair of scoundrels were up to.

By this time it seemed that Zouche had nearly completed all his preparations for departure, and was merely filling in the last few seconds by cramming a few sandwiches into the capacious pockets of his overcoat, whilst the tired-looking youth emptied some whiskey from the bottle on the sideboard into a flask.

The next moment the hunchback pulled his felt hat down tightly over his forehead, practically concealing the whole of his features, and snatching the flask, which was now full, he nodded a quick farewell to his companion and then hurried off. Almost immediately afterwards I heard the side door bang, and I realised that the dwarf had really gone, and I was free to set off on that curious trip to Southampton.


Chapter Ten.