But the Old Doctor had gone to his fathers long ago, and the old house, divided into two tenements--with access by one porch and front passage--had been occupied for twenty years past by Nicky-Nan and (for eight or nine) by the Penhaligon family. Nicky-Nan's cantle overhung the river, and comprised a kitchen and scullery on the ground-floor, with a fairly large bedroom above it. The old Doctor's own bedroom it had been, and was remarkable for an open fireplace with two large recessed cupboards let into a wall, which measured a good four feet in depth beyond the chimney-breast. Once, in cleaning out the cupboards, Nicky-Nan had discovered in the right-hand one that one or two boards of the flooring were loose. Lifting them cautiously he had peered into a sort of lazarette deep down in the wall, and had lowered a candle, the flame of which, catching hold of a mass of dried cobweb, had shot up and singed his eyebrows, for a moment threatening to set the house on fire. It had given him a scare, and he never ventured to carry his exploration further. His curiosity was the less provoked because at least a score of the old houses in Polpier have similar recesses, constructed (it is said) as hiding-places from the press-gang or for smugglers hotly pursued by the dragoons. The Penhaligon family inhabited the side of the house that faced the street, and their large living-room was chiefly remarkable for the beams supporting the floor above it. They had all been sawn lengthwise out of a single oak-tree, and the outer edges of some had been left untrimmed. From a nail in the midmost beam hung a small rusty key, around which the spiders wove webs and the children many speculations: for the story went that a brother of the old Doctor's-- the scapegrace of the family--had hung it (the key of his quadrant) there, with strong injunctions that no one should take it down until he returned--which he never did. So Mrs Penhaligon's feather-brush always spared this one spot in the room, every other inch of which she kept scrupulously dusted. She would not for worlds have exchanged lodgings with Nicky-Nan, though his was by far the best bedroom (and far too good for a bachelor man); because from her windows she could watch whatever crossed the bridge--folks going to church, and funerals. But the children envied Nicky-Nan, because from his bedroom window you could--when he was good-natured and allowed you--drop a line into the brawling river. Of course there were no real fish to be caught, but with a cunning cast and some luck you might hook up a tin can or an old boot.