I was plodding up the slope, turning these thoughts over in my mind, and had reached a point which may have been halfway to home, when my mind was brought back to my own position by a strange noise behind me. It was something between a snore and a growl, low, deep, and exceedingly menacing. Some strange creature was evidently near me, but nothing could be seen, so I hastened more rapidly upon my way. I had traversed half a mile or so when suddenly the sound was repeated, still behind me, but louder and more menacing than before. My heart stood still within me as it flashed across me that the beast, whatever it was, must surely be after me