Harry Keogh was not the only one who 'talked' to the dead. In the USSR the Soviet E-Branch (ESP-Branch) made use of Boris Dragosani, a necromancer, to tear the secrets of corpses from their violated bodies. But where Harry was beloved of the Great Majority, they feared and loathed Dragosani. The difference was this: where the Necroscope merely conversed with the dead, befriending and consoling them, and asking nothing in return, the Russian necromancer simply reached in and took\ Having been instructed in his obscene talent by a long-buried but still undead vampire, whose seed had been passed on to him, nothing could be hidden from Dragosani: he would find his answers in the blood, the guts, the very marrow of his victims' bones. In all other instances the dead can't feel pain — but that was part of Dragosani's talent, too. For when he worked he made them feel it! They felt his hands, his knives, his tearing nails; they knew and felt everything he did to them! It was never his way simply to question the dead for their secrets, for then they might lie to him. No, his way was to rend them apart and then read the answers in torn skin and muscle, in shredded ligaments and tendons, in brain fluid and the mucus of eye and ear, and in the very texture of the dead tissue itself!

… While avenging the cruel death of his murdered mother, Harry Keogh became aware of the existence of the ESP-agencies of East and West. Recruited to the aid of British ESP-Intelligence in the secret war with Russia's mindspies, he pitted himself against Boris Dragosani. And now his intuitive maths came into play.

With the assistance of August Ferdinand Möbius (1790–1868) Harry gained access to the Möbius Continuum, a fifth dimension running parallel not only to the mundane four but to all other material planes.