The Terror
extremely steady, sensible young fellows, not in the least likely to play foolish tricks of any kind.
Lewis was immersed in these reflections, having successfully silenced his brother-in-law; he was trying in vain to find some clue to the horrible enigma. The Midlingham theory of a concealed German force, hiding in places under the earth, was extravagant enough, and yet it seemed the only solution that approached plausibility; but then again even a subterranean German host would hardly account for this wreckage of a boat, floating on a calm sea. And then what of the tree with the burning in it that had appeared in the garden there a few weeks ago, and the cloud with a burning in it that had shown over the trees of the Midland village?
I think I have already written something of the probable emotions of the mathematician confronted suddenly with an undoubted two-sided triangle. I said, if I re-
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