"Well, if that was so, and you had been wrongly convicted, which I was inclined to believe, the doctor's presence on the scene seemed to require a little looking into. I knew that at that time he had only just arrived in London, so the odds were that he and Marks were old acquaintances. I hunted up the evidence in your trial--I had rather forgotten it--and I found just what I expected. Beyond the fact that Marks was a foreigner and had been living in London for about eight years, no one seemed to know anything about him at all. The police were so confident in their case against you that apparently they hadn't even bothered to make the usual inquiries. If they had taken the trouble to communicate with St. Petersburg, they could have found out all about Mr. Marks without much difficulty. The authorities there have a wonderfully complete system of remembering their old friends." "But three years afterwards--" I began. "It makes very little difference, especially as just at present we are on excellent terms with the Russian Secret Service. They took the matter up for me, and last night I got the full particulars I wanted about the man who had given away McMurtrie and his friends in St. Petersburg. There can be no question that he and Marks were the same person." I took a long--a very long breath. "There remains," I said, "the Home Office." "I don't think you need be seriously worried about the Home Office," returned Latimer serenely. "By this time they have a full statement of the case--except, of course, for my direct evidence that I heard the doctor actually bragging of his achievement. I had a long interview with Casement before I left London this morning, and he said he would go round directly after breakfast. He evidently arrived just too late to prevent the order for your arrest." I nodded. "Sonia must have gone to the police last night," I said; and then in a few words I told him of the telegram I had received from Gertie 'Uggins, and how it had just enabled me to get away. "I don't know," I finished, "how much my double escape complicates matters. However unjust my sentence was, there's no denying I've committed at least three felonies since. I've broken prison, plugged a warder in the jaw, and shoved an oar into a policeman's tummy. Do you think there's any possible chance of the Home Secretary being able to overlook such enormities?" Latimer laughed easily. "My dear Lyndon," he said, "in return for what you've done for us, you could decimate the police force if you wanted to." Then, speaking more seriously, he added: "I tell you frankly, there's every chance of a huge European war in the near future, and you can see the different position we should be in if the Germans had got hold of this new powder of yours. Apart from that, the Government owe you every possible sort of reparation for the shameful way you've been treated. If there's any 'overlooking' to be done, it will be on your side, not on theirs."