From this high post he noticed that, while he was well above one zone of shells, there was still another zone of them screaming far overhead. These projectiles of the upper strata of air were travelling in the opposite direction. He marked that they came from a crowded line of smoke-bursts and blinding flashes just beyond the boundary of the city. He decided that, upon resuming his journey, he would fly at the present level, and so avoid traversing again either of the zones of death. Much to his disappointment, he found that his present observation post did not give him as wide a view as he had hoped for. The city of his captivity, he now saw, was set upon the loop of a silver stream in the centre of a saucer-like valley. In every direction his view was limited by low, encircling hills. Along one sector of this circuit--that from which the shells of the lower stratum seemed to him to be issuing--the hill-rim and the slopes below it were fringed with vomiting smoke-clouds and biting spurts of fire. This did not, however, influence in the least his choice of the direction in which to journey. Instinct, little by little, as he sat there on the slowly veering vane, was deciding that point for him. His gaze was fixing itself more and more towards the north, or, rather, the north-west; for something seemed to whisper in his heart that there was where he would find the wild solitudes which he longed for. The rugged and mist-wreathed peaks of Scotland or North Wales, though he knew them not, were calling to him in his new-found freedom. The call, however, was not yet strong enough to be determining, so, having well fed and being beyond measure content with his liberty, he lingered on his skyey perch and watched the crash of the opposing bombardments. The quarter of the town immediately beneath him had so far suffered little from the shells, and the church showed no signs of damage except for one gaping hole in the roof. But along the line of the fortifications there seemed to be but one gigantic boiling of smoke and flames, with continual spouting fountains of debris. This inexplicable turmoil held his interest for a few moments. Then, while he was wondering what it all meant, an eleven-inch shell struck the church spire squarely about thirty feet below him.