CHAPTER XX—METABOLISM “Am I looking grave?” asked Sir Nathaniel inconsequently when he re-entered the room. “You certainly are, sir.” “We little thought when first we met that we should be drawn into such a vortex. Already we are mixed up in robbery, and probably murder, but—a thousand times worse than all the crimes in the calendar—in an affair of ghastly mystery which has no bottom and no end—with forces of the most unnerving kind, which had their origin in an age when the world was different from the world which we know. We are going back to the origin of superstition—to an age when dragons tore each other in their slime. We must fear nothing—no conclusion, however improbable, almost impossible it may be. Life and death is hanging on our judgment, not only for ourselves, but for othe