Thomas and I lowered the ladder quietly — Topaz was behind us simply panting to descend. She had to go down backwards, of course, which was most unlike a ministering angel, but she made up for that when she got to the bottom. Holding the lantern as high as she could, she cried: “Mortmain, I’ve come to rescue you! It’s Topaz, Mortmain! You’re safe!” Father shot up into a sitting position, gasping: “Great God! What’s happened?” Then she swooped on to him and the bed went down wallop, its head and foot very nearly meeting over them.