Placing a warning finger on his lips he dropped to his hands and knees almost as soon as I reached the topmost stair and peered through the aperture. I also stretched over him and peeped at the interior, and even as we did so we both started back. For there, in a room fitted up like a boudoir, was the poor but over-venturesome aeronaut, Sparhawk, firmly fixed on a high-backed oaken chair with his hands tied securely behind him, his mouth tied with a handkerchief, while a piece of rope held his neck tightly pressed against the wood.

Another moment, and I am sure that, whatever might have been the consequences, we should have darted in and released him had not another object in the room caught and held our attention. That was no other than Doris herself, who had evidently been put on guard over the too venturesome captain, and was now promenading up and down the room, with a loaded revolver, trying to look fierce and commanding and well accustomed to firearms, but failing, I am bound to own, most miserably in the attempt.

Obeying a touch from the Spaniard I drew back down a few of the stairs and held a hurried consultation with him. “It seems to me,” he said, with a sly chuckle, “as though the worthy captain showed a little fight when he found that he had been trapped and that some of our friends thought it would be better if they kept him quiet for a little while so that they could fix things up with my father in comparative peace. For a time, at all events, I propose we leave him with Miss Doris.”

“So do I,” I said. “We have really no business with him except to go on that journey in his flying machine, and if he doesn’t come up to time we can always tell the committee of the fête where to find him. Now, let’s push on. As I turned away for the door of the room in which he is confined I think I saw the entrance to an oratory or chapel, and once I am almost certain I caught the sounds of voices. Let us go and explore that next.”

And I turned my face about and made for the end of the passage where I had noticed a big pair of folding doors, on the panels of which had been carved the sacred monogram and a cross about two feet in height. As I had suspected, this was the place to which the hunchback had been taken. True, the doors had been shut, but there was no key in the lock, and the first glance through the hole revealed to us the interior of a family chapel that had been turned into a kind of assembly hall, for a long oaken table ran down the centre, flanked by rows of stalls on either side that, no doubt, had occupied honoured positions in the chancel. At the top end of this table sat no less a personage than His Majesty’s Secretary of State for Foreign Affairs, with a quill in his hand, busily writing on some large blue official-looking paper. To the right of Lord Cyril sat Lord Fotheringay, who was also bending over some documents, while opposite to him was the lawyer we had seen outside the gate—the man who had first of all spoken to Doris and her companions—and he was reading aloud from a large book in front of him a queer, legal jargon that suggested some Act of Parliament that had been for centuries on the statute-book.

For a moment the object of all this attention eluded us, but only for a moment. Suddenly, the lawyer stopped, and Lord Cyril Cuthbertson looked up, an expression of annoyance on his firm but forbidding features. Then we saw the hunchback spring to the bottom of the table, on which he laid a fist trembling with passion.

“This is monstrous,” he cried, “monstrous! I repeat, I am no more an Englishman than is the Holy Father at Rome or the Emperor Nicholas, or my own beloved King Alphonso. I, therefore, deny your right to detain me here—to threaten me with penalties—to torture me with the knowledge that you have determined to stop at nothing to gain possession of those three manuscripts relating to the Lake of Sacred Treasure.”

“Then give them up, my good man,” replied Lord Cyril Cuthbertson suavely. “I have told you I will compensate you for them richly. It shall be no question of what they have cost you but of what they may mean to you.”

“And I refuse,” repeated the man doggedly. “I refuse. I have refused—I shall always refuse!”

“Why?” persisted the Foreign Secretary, fixing two piercing eyes on the Spaniard. “Don’t think we English politicians are fools, because, in a word, we are not. I know there is an idea abroad on the Continent that because our Secret Service Fund is so small it is utterly ineffective. But that is not true. We have been quite sharp enough to know that ever since you set foot in London you have acted as one of the spies of Spain, and in pursuance of instructions from Madrid you have often bribed some of our men to do worse things than even Alfred Dreyfus was accused of, and have often brought yourself within the meshes of our criminal law. Don’t presume too far on British complacency and good humour. We will go far, very far, to preserve the amenities of diplomacy, but over these manuscripts, with your bloodthirsty dreams of a great new Spanish empire that will sack London, you are pushing us a little too hard. Nor is that the worst. We have got your favourite son Paul in our hands at last. We have only to lift a finger and he, too, will be utterly crushed.”