I looked at my map for a moment, took out my pocket compass, and then plunged into the heather. Already I had a good idea of the lie of the country--it is an instinct with your flying man--and I realized that an accurate knowledge of it would prove invaluable in the task before me. I met no living soul during that first walk over the moor. Larks were singing high above in the blue; a pair of the rare Cornish choughs, with their scarlet bills, flew screeching from the summit of a lichen-covered rock as big as a house; but until I got to Carne Zerran, and looked down to the narrow strip of pasture lands and cornfields that lie along the cliffs, there was no sign of human habitation. Far down below I saw a church tower and a little cluster of grey houses. Beyond was the coast-line, with a creamy froth of breakers at the foot of the jagged cliffs, and the Atlantic, "Mother of Oceans," beyond. There was no land between me and New York! I suppose that in all the glory of sun and colour, superb spaces of sea and sky, I stood alone, and looked upon a scene as fair as any on this earth. But as I focussed my binoculars, and swept the coast, my only thought was that here--if anywhere at all--was the heart of the mystery I had come to solve. Well! It was a fitting setting, in its lonely vastness. Anything might happen here among these Druid-haunted hills. A crafty fiend, a man with a great intellect and Satan in his soul, might well find this his proper theatre! About a mile from the village, and just below me, I saw the cliffs bent inwards between two projecting headlands. This must be the Zerran Cove of the map, and--yes, seemingly upon the very edge of the precipice was a long, grey building, which could be none other than "The Miners' Arms." I began the descent, leaping from rock to rock, where the adders lay basking in the sun. After a few hundred yards, I struck a gorge, through which a stream fell towards the sea. Here I found a well-defined path, which looped downwards to the ruins of a deserted tin-mine. I saw, as I passed it, the windowless engine-house, and the gaunt timbers of the winding gear still in place. The gibbet-like erection and the dumps of useless stuff covered with rank dock leaves made a forlorn and ugly picture in that narrow gorge where the sun hardly penetrated. I passed it soon, and came out upon the main coach road from St. Ives to Land's End, and, crossing this, found a side lane, which took me direct to the remote hostelry I had seen from the heights above. It was a large place, covered with ivy, and no doubt did a considerable trade eighty years before, when the innumerable tin-mines on the moor were all at work. Now it seemed forgotten by the world, and all asleep in the sun. "An ideal base for our operations!" I thought, as I strode through an open door into a long, low room, with a stone floor and heavily timbered roof.