The next few rooms he tried were all abandoned or filled only with crumbling boxes and ominous-looking leaden coffins; but impressed him deeply with the magnitude of Joseph Curwen's original operations. He thought of the slaves and seamen who had disappeared, of the graves which had been violated in every part of the world, and of what that final raiding party must have seen; and then he decided it was better not to think any more. Once a great stone staircase mounted at his right, and he deduced that this must have reached to one of the Curwen outbuildings—perhaps the famous stone edifice with the high slit-like windows—provided the steps he had descended had led from the steep-roofed farmhouse. Suddenly the walls seemed to fall away ahead, and the stench and the wailing grew stronger. Willett saw that he had come upon a vast open space, so great that his torchlight would not carry across it; and as he advanced he encountered occasional stout pillars supporting the arches of the roof.