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 "Materials", respectively – and then there came a flash of memory as to where he had seen that word "Guards" before in connexion with this dreadful mystery. It was, of course, in the recent letter to Dr. Allen purporting to be from old Edwin Hutchinson; and the phrase had read: 'There was no Neede to keep the Guards in Shape and eat'g off their Heads, 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?
So that was what these lekythoi contained; the monstrous fruit of unhallowed rites and deeds, presumably won or cowed to such submission as to help, when called up by some hellish incantation, in the defence of their blasphemous master or the questioning of those who were not so willing? Willett shuddered at the thought of what he had been pouring in and out of his hands, and for a moment felt an impulse to flee in panic from that cavern of hideous shelves with their silent and perhaps watching sentinels. Then he thought of the "Materia" – in the myriad Phaleron jugs on the other side of the room. Salts too – and if not the salts of "guards", then the salts of what? God! Could it be possible that here lay the mortal relics of half the titan thinkers of all the ages; snatched by supreme ghouls from crypts where the world thought them safe, and subject to the beck and call of madmen who sought to drain their knowledge for some still wilder end whose ultimate effect would concern, as poor Charles had hinted in his frantic note, "all civilisation, all natural law, perhaps even the fate of the solar system and the universe"? And Marinus Bicknell Willett had sifted their dust through his hands!
Then he noticed a small door at the further end of the room, and calmed himself enough to approach it and examine the crude sign chiselled above. It was only a symbol, but it filled him with vague spiritual dread; for a morbid, dreaming friend of his had once drawn it on paper and told him a few of the things it means in the dark abyss of sleep. It was the sign of Koth, that dreamers see fixed above the archway of a certain black tower standing alone in twilight – and Willett did not like what his friend Randolph Carter had said of its powers. But a moment later he forgot the sign as he recognised a new acrid odour in the stench-filled air. This was a chemical rather than animal smell, and came clearly from the room beyond the door. And it was, unmistakably, the same odour which had saturated Charles Ward's clothing on the day the doctors had taken him away. So it was here that the youth had been interrupted by the final summons? He was wiser that old Joseph Curwen, for he had not resisted. Willett, boldly determined to penetrate every wonder and nightmare this nether realm might contain, seized the small lamp and crossed the threshold. A wave of nameless fright rolled out to meet him, but he yielded to no whim and deferred to no intuition. There was nothing alive here to harm him, and he would not be stayed in his piercing of the eldritch cloud which engulfed his patient.
The room beyond the door was of medium size, and had no furniture save a table, a single chair, and two groups of curious machines with clamps and wheels, which Willett recognised after a moment as mediaeval instruments of torture. On one side of the door stood a rack of savage whips, above which were some shelves bearing empty rows of shallow pedestalled cups of lead shaped like Grecian kylikes. On the other side was the table; with a powerful Argand lamp, a pad and pencil, and two of the stoppered lekythoi from the shelves outside set down at irregular places as if temporarily or in haste. Willett lighted the lamp and looked carefully at the pad, to see what notes Ward might have been jotting down when interrupted; but found nothing more intelligible than the following disjointed fragments in that crabbed Curwen chirography, which shed no light on the case as a whole:
'B. dy'd not. Escap'd into walls and founde Place below.'
'Sawe olde V. saye ye Sabaoth and learnt yee Way.'
'Rais'd Yog-Sothoth thrice and was ye nexte Day deliver'd.'
'F. soughte to wipe out all know'g howe to raise Those from Outside.'
As the strong Argand blaze lit up the entire chamber the doctor saw that the wall opposite the door, between the two groups of torturing appliances in the corners, was covered with pegs from which hung a set of shapeless-looking robes of a rather dismal yellowish-white. But far more interesting were the two vacant walls, both of which were thickly covered with mystic symbols and formulae roughly chiselled in the smooth dressed stone. The damp floor also bore marks of carving; and with but little difficulty Willett deciphered a huge pentagram in the centre, with a plain circle about three feet wide half way between this and each corner. In one of these four circles, near where a yellowish robe had been flung carelessly down, there stood a shallow kylix of the sort found on the shelves above the whip-rack; and just outside the periphery was one of the Phaleron jugs from the shelves in the other room, its tag numbered 118. This was unstoppered, and proved upon inspection to be empty; but the explorer saw with a shiver that the kylix was not. Within its shallow area, and saved from scattering only by the absence of wind in this sequestered cavern, lay a small amount of a dry, dull-greenish efflorescent powder which must have belonged in the jug; and Willett almost reeled at the implications that came sweeping over him as he correlated little by little the several elements and antecedents of the scene. The whips and the instruments of torture, the dust or salts from the jug of "Materia", the two lekythoi from the "Custodes" shelf, the robes, the formulae on the walls, the notes on the pad, the hints from letters and legends, and the thousand glimpses, doubts, and suppositions which had come to torment the friends and parents of Charles Ward – all these engulfed the doctor in a tidal wave of horror as he looked at that dry greenish powder outspread in the pedestalled leaden kylix on the floor.
With an effort, however, Willett pulled himself together and began studying the formulae chiselled on the walls. From the stained and incrusted letters it was obvious that they were carved in Joseph Curwen's time, and their text was such as to be vaguely familiar to one who had read much Curwen material or delved extensively into the history of magic. One the doctor clearly recognised as what Mrs. Ward heard her son chanting on that ominous Good Friday a year before, and what an authority had told him was a very terrible invocation addressed to secret gods outside the normal spheres. It was not spelled here exactly as Mrs. Ward had set it down from memory, nor yet as the authority had shewn it to him in the forbidden pages of "Eliphas Levi"; but its identity was unmistakable, and such words as Sabaoth, Metraton, Almonsin, and Zariatnatmik sent a shudder of fright through the search who had seen and felt so much of cosmic abomination just around the corner.