The meaning of the two signs puzzled him, and he wondered why this battery of chemicals was separated so radically from those in glass jars on the shelves of the laboratory proper. "Custodes", "Materia"; that was the Latin for "Guards" and "Material", respectively—and then there came a flash of memory as to where he had seen that word "Guards" before in connection with this dreadful mystery. It was, of course, in the recent letter to Dr. Allen purporting to be from old Edward Hutchinson; and the phrase had read: "There was no Neede to keep the Guards in shape and eat'g off their Heades, and it made much to be founde in Case of Trouble, as you too welle Knowe." What did this signify? But wait—was there not still another reference to "guards" in this matter which he had failed wholly to recall when reading the Hutchinson letter? Back in the old non-secretive days Ward had told him of the Eleazar Smith diary recording the spying of Smith and Weeden on the Curwen farm, and in that dreadful chronicle there had been a mention of conversations overheard before the old wizard betook himself wholly beneath the earth. There had been, Smith and Weeden insisted, terrible colloquies wherein figured Curwen, certain captives of his, and the guards of those captives. Those guards, according to Hutchinson or his avatar, had "eaten their heads off", so that now Dr. Allen did not keep them in shape. And if not in shape, how save as the "salts" to which it appears this wizard band was engaged in reducing as many human bodies or skeletons as they could?