Doctor Allen Halsey, Dean of the Medical School at Miskatonic University, had told him of someone who had theories similar to his own. Halsey was a narrow minded fool who had thought Ellery’s theories implausible, (what little he knew of them; Ellery was careful not to share his full ideas with small minds. Only Marcia had known their full extent), but he had told Ellery about someone else who may prove useful. Ellery stalked out of the hospital on borrowed crutches, his twisted leg rendered near useless, and when he got to the nearest pay telephone and found the man’s number and address (so close by! Please, God, let this work!), and he called him, and the man answered, and as soon as he understood the situation he rushed over in his car, picked up Ellery from the phone booth, and took him back to the hospital, and then Ellery went back inside and insisted on seeing the body that had been Marcia Ellery alone, and that was when he injected her corpse with the syringe he had been given by Herbert West.
The knowledgeable reader may have an expectation as to what will happen next, but he is encouraged to keep it private lest he spoil things for others. He will also likely find that he was mistaken. This was not the reagents made by West in his later career, which would work their full, though fatally flawed, effect on their own. This was only a preservative. But my god, what a preservative.
Later that day, Ellery was allowed to take the body of his beloved Marcia home. West helped him to move her. West was interested, preternaturally interested, and Ellery, in a fit of protectiveness, snarled at him to stay away from her if he knew what was best for him, and West decided that it was best to leave Ellery to his own investigations, and to keep an eye on him from afar, as one does with academic rivals.
Ellery set up an elaborate facility in his house to care for the now vacant body of his beloved. He kept it cold, far below freezing, in a container he commissioned for just this purpose, in the cellar of his house. The reagent prevented any freezing of the blood, lymph, vitreous humor, or other bodily fluids. Her corpse was preserved better than any other corpse in history had been. A Pharaoh would have been jealous. Alarms were rigged to the room; if a change of even one half of one degree occurred in the temperature, Ellery would be notified, much less if anyone had opened the chamber door. Ellery had kept her there for four long, agonizing years, as he set up what was needed. His other experiments fell by the way side. He stopped taking on assistants; he couldn’t entrust what he was doing to anyone else, it was far too valuable. He read forbidden books far more often than before. Indeed, it seemed they were the only kind of book he read these days. He even fell behind in his reading of the journals of Chemistry, and had to give up his position as an editor on one and a reviewer on three others. His dreams, wherein he had been a passive or perhaps active observer, he now took on the role of an active seeker. He sought out new locations, new peoples, new individuals to question and learn from. Interrogate, really. He was desperate for any knowledge that he felt would aid in his attempts. In his dreams he spoke with many creatures. Fungus based beings that reminded him of the stories of the Abominable Snow-Men, and which complimented him on his preservation technique, and told him they could have helped him if he had come to him before she died, but that now they were as helpless as he. Beings shaped like Yule trees that referenced conversations yet to happen and could not remember ones that had already occurred. A man in a yellow cloak who seemed to delight in his suffering. He glimpsed a series of bubbling spheres whose size he could begin to estimate - it could have been the smallest bit of froth in a beer, or the largest thing he had ever seen - until one of the spheres passed in front of a star and blotted it out, and another passed behind it at the same time, and he saw it was larger than any sun. And then one day he heard a thin piping, and met in his dreams a tall, dark man, dressed like unto a Pharaoh, who finally told him what he wanted to hear. The thing called Nyarlothotep told James Ellery the location of Heaven.
Heaven is in the center of the Milky Way galaxy. Scientists know, or will know it, as an inordinately dense and large conglomeration of Dark Matter. Souls, being also made of Dark Matter, are unable to touch anything made of normal matter, once the life-force connecting them uniquely to a single brain is severed. The energy from this severing, like that of splitting an atom, pushes on them - it breaks them free of whatever orbit they were in, and then they are pulled towards the largest object around. In the Milky Way, that is the enormous cluster of Dark Matter at its heart. That is where the soul of every living creature that dies in our galaxy goes: the enormous Black Hole at the center of the Galaxy. That is Heaven.