... leaving Tonnison rooting systematically among the heap of stones and rubbish on the outer side Then I commenced to examine the surface of the ground, near the edge of the abyss, to see whether there ... removed the props, placed the planks up against the door Then, I nailed the heads of the struts to these, and, driving them well home at the bottoms, nailed them again there "Thus, I made the door ... was still there It was gone I supposed that others of the monsters had removed it during the night "Then, I went down on to the roof, and crossed over to the gap from which the coping stone had...