The Classic Mystery Collection - Arthur Conan Doyle [1047]
The prospects of independent research were not a whit better than before. There were only two theories in the field, the channel theory and the Memmert theory. The former languished for lack of corroboration; the latter also appeared to be weakened. To Fräulein Dollmann the wreck-works were evidently what they purported to be, and nothing more. This fact in itself was unimportant, for it was clear as crystal that she was no party to her father's treacherous intrigues, if he was engaged in such. But if Memmert was his sphere for them, it was disconcerting to find her so familiar with that sphere, lightly talking of a descent in a diving-bell--hinting, too, that the mystery as to results was only for local consumption. Nevertheless, the charm of Memmert as the place we had traced Grimm to, and as the only tangible clue we had obtained, was still very great. The really cogent objection was the insuperable difficulty, known and watched as we were, of learning its significance. If there was anything important to see there we should never be allowed to see it, while by trying and failing we risked everything. It was on this point that the last of all misunderstandings between me and Davies was dissipated. At Bensersiel he had been influenced more than he owned by my arguments about Memmert; but at that time (as I hinted) he was biased by a radical prejudice. The channel theory had become a sort of religion with him, promising double salvation--not only avoidance of the Dollmanns, but success in the quest by methods in which he was past master. To have to desert it and resort to spying on naval defences was an idea he dreaded and distrusted. It was not the morality of the course that bothered him. He was far too clear-headed to blink at the essential fact that at heart we were spies on a foreign power in time of peace, or to salve his conscience by specious distinctions as to our mode of operation. The foreign power to him was Dollmann, a traitor. There was his final justification, fearlessly adopted and held to the last. It was rather that, knowing his own limitations, his whole nature shrank from the sort of action entailed by the Memmert theory. And there was strong common sense in his antipathy.
So much for independent research.
On the other hand the road was now clear for the other method. Davies no longer feared to face the imbroglio at Norderney; and that day fortune had given us a new and potent weapon against Dollmann; precisely how potent we could not tell, for we had only a glimpse of his past, and his exact relations with the Government were unknown to us. But we knew who he was. Using this knowledge with address, could we not wring the rest from him? Feel our way, of course, be guided by his own conduct, but in the end strike hard and stake everything on the stroke? Such at any rate was our scheme to-night. Later, tossing in my bunk, I be-thought me of the little drab book, lit a candle, and fetched it. A preface explained that it had been written during a spell of two months' leave from