The Classic Mystery Collection - Arthur Conan Doyle [1012]
On the whole I think we made few mistakes. Davies had a supreme aptitude for the work. Every hour, sometimes every minute, brought its problem, and his resource never failed. The stiffer it was the cooler he became. He had, too, that intuition which is independent of acquired skill, and is at the root of all genius; which, to take cases analogous to his own, is the last quality of the perfect guide or scout. I believe he could _smell_ sand where he could not see or touch it.
As for me, the sea has never been my element, and never will be; nevertheless, I hardened to the life, grew salt, tough, and tolerably alert. As a soldier learns more in a week of war than in years of parades and pipeclay, so, cut off from all distractions, moving from bivouac to precarious bivouac, and depending, to some extent, for my life on my muscles and wits, I rapidly learnt my work and gained a certain dexterity. I knew my ropes in the dark, could beat economically to windward through squalls, take bearings, and estimate the interaction of wind and tide.
We were generally in solitude, but occasionally we met galliots like the Johannes tacking through the sands, and once or twice we found a fleet of such boats anchored in a gut, waiting for water. Their draught, loaded, was from six to seven feet, our own only four, without our centre-plate, but we took their mean draught as the standard of all our observations. That is, we set ourselves to ascertain when and how a vessel drawing six and a half feet could navigate the sands.
A word more as to our motive. It was Davies's conviction, as I have said, that the whole region would in war be an ideal hunting-ground for small free-lance marauders, and I began to know he was right; for look at the three sea-roads through the sands to Hamburg, Bremen, Wilhelmshaven, and the heart of commercial Germany. They are like highways piercing a mountainous district by defiles, where a handful of desperate men can arrest an army.
Follow the parallel of a war on land. People your mountains with a daring and resourceful race, who possess an intimate knowledge of every track and bridle-path, who operate in small bands, travel light, and move rapidly. See what an immense advantage such guerillas possess over an enemy which clings to beaten tracks, moves in large bodies, slowly, and does not 'know the country'. See how they can not only inflict disasters on a foe who vastly overmatches them in strength, but can prolong a semi-passive resistance long after all decisive battles have been fought. See, too, how the strong invader can only conquer his elusive antagonists by learning their methods, studying