Candles will not burn all day, so someone had to stay on the island to light them at the last minute, as well as to look after the lighthouse. That someone was to be Titty. For one thing, Roger could not be left alone, and John and Susan would both be needed for sailing the two ships. For another, Titty longed to have Wild Cat Island all to herself, to be a lonely lighthouse keeper, to be Robinson Crusoe, and to feel just what a really desert island was like. A blanket would do for a goatskin.
Another lovely passage from the children’s book Swallows and Amazons by Arthur Ransome.