The Boats of the 'Glen Carrig' by William Hope Hodgson

Now at times, I fell upon sleep, as did most of the others; but, for the most part, I lay half sleeping and half waking -- being unable to attain to true sleep by reason of the everlasting growling above us in the night, and the fear which it bred in me. Thus, it chanced that just after midnight, I caught a sound in the main cabin beyond the door, and immediately I was fully waked. I sat me up and listened, and so became aware that something was fumbling about the deck of the main cabin. At that, I got to my feet and made my way to where the bo'sun lay, meaning to waken him, if he slept; but he caught me by the ankle, as I stooped to shake him, and whispered to me to keep silence; for he too had been aware of that strange noise of something fumbling beyond in the big cabin.

In a little, we crept both of us so close to the door as the chests would allow, and there we crouched, listening; but could not tell what manner of thing it might be which produced so strange a noise. For it was neither shuffling, nor treading of any kind, nor yet was it the whirr of a bat's wings, the which had first occurred to me, knowing how vampires are said to inhabit the nights in dismal places. Nor yet was it the slurr of a snake; but rather it seemed to us to be as though a great wet cloth were being rubbed everywhere across the floor and bulkheads. We were the better able to be certain of the truth of this likeness, when, suddenly, it passed across the further side of the door behind which we listened: at which, you may be sure, we drew backwards both of us in fright; though the door, and the chests, stood between us and that which rubbed against it.