For once Casteno was full of sympathy with me.
No sooner did I explain to him the extraordinary development of that mystery at Whitehall Court than he was all eagerness, all attention, all resource to prove to me that I must think the best and not the worst of Colonel Napier’s disappearance.
At first, I own, I was not at all inclined to take help from such a quarter; I had not forgotten those suspicious circumstances in which he left my office at the time the murder was committed. Nevertheless, before we had finished our dinner in that quaint old Shrewsbury hotel he had practically won me over to his way of looking at the occurrence.
“After all,” said he, as he drained his last glass of wine, “you can certainly rely on the impression that Colonel Napier has come to no harm. If he had, Miss Doris would not be here at all as she is, as bright and gay as a lark, and as keen as a hawk on getting the benefit of those manuscripts for Lord Cuthbertson. Neither he nor Lord Fotheringay would dare to keep bad news from her. They are, after all, both of them gentlemen, whatever may happen to be the Chauvinistic tactics they adopt to push themselves forward in their own particular little intrigues in politics. Silence in such a crisis would be monstrous—utterly monstrous.”
“But where can he be?” I cried helplessly. “What is he doing? Why doesn’t he come forward and tell the police as much as he knows of the affair?”
“Perhaps he has,” said Casteno significantly, dealing with my last question first. “Who knows? Naylor has dropped his part in the search, you see, and if that means anything at all it means that the murder has precious little to do with this wild chase after the old parchment records. My own impression is that the daughter is not the only member of the Napier family who has taken sides against us in this hunt for the submerged treasure. When the truth is told I think you will find both father and daughter have determined, in a perfectly friendly way, to work against me, just to prove to you how foolish and futile you have been not to take their advice. Hence Colonel Napier may have been despatched in one direction to circumvent us and Miss Doris in another. That disposition of their forces would be quite fair, you know, and might have most important results.”
“And the man found dead in the colonel’s bed?”
“Any theory could account for his presence,” said the Spaniard, shrugging his shoulders and walking towards the window as though heartily tired of my objections. “One is that he was some burglar who had got the office that the colonel had left the flat, and had disguised himself to resemble the master, had walked in at the front door and personated him over-night, and had been assassinated in error. Such cases of impersonation are much more common than people imagine, but they have such ludicrous, as well as tragic, results that they seldom, if ever, get into the police courts. Another theory—and to me not at all a bad one—is that the whole business has been engineered by some secret society for a purpose that will eventually become apparent. As you know, there are plenty of secret organisations in London that do not content themselves with mystic signs and passwords and occasional extravagances in the shape of nitro-glycerine and dynamite. I know there is a branch of the Spanish ‘Friends of Liberty’ in England, for instance; and I am sure if they have got some hint from Mexico about the discovery of those manuscripts they will stop at nothing—not even a crime like this—to frighten off Colonel Napier.”
“Well, I had better leave it,” I said at last, with a sigh, throwing the paper on to the floor and joining my companion at the casement. “After all, you are really the leader of this expedition, and you have a right to require of me that I shall pay some attention to your conclusions.”
“Yes; leave it,” repeated Casteno. “Remember, you are only one man with one brain and one pair of hands. You can’t do everything in a maze that has such extraordinary ramifications as this. I tried alone, remember, and failed; and, first, I had to get your help, and then Mr Cooper-Nassington’s, and heaven alone knows where we shall end. But this brings me to another point, Glynn,” he went on, with increasing earnestness. “I want you not to approach Miss Doris until this flying machine experiment is over. It is quite natural of you to wish to do so, I admit, but I want you to consider my interests a little for a day or two, and to refrain.”