To rid the world of the vampire Dragosani, Harry used the Möbius Continuum to invade the Chateau Bronnitsy, Russia's secluded E-Branch HQ. There he called up from death an army of mummified Tartars whose bodies had been preserved by the peaty ground. Dragosani was destroyed, and along with him many of the staff and much of the apparatus of the Soviet mindspy agency.
But Harry paid the price too, and his body was also destroyed. Except…
… As the Necroscope knew well enough from personal experience, death is not the end.
Incorporeal, pure mind, he escaped to the Möbius Continuum and later, by involuntary metempsychosis, came to 'inhabit' the brain-dead body of a British esper. By then, however, Harry had also come to realize the role he must play in the eradication of vampire spawn from the world of men. This recognition of his purpose (his destiny?) came about through the discovery of a vampire's scarlet thread among the pure blue life-threads of humanity where they permeate the past and future time-lanes of the Möbius Continuum.
Yulian Bodescu, contaminated with vampirism by Thibor Ferenczy — the same centuries-dead vampire who infected Dragosani — threatened both Harry's life and the life of his baby son. But this time it was Harry Jr who turned the tables and made possible Bodescu's destruction; for he too was born a Necroscope, with talents the same as (or greater than?) those possessed by his father.
Following the Bodescu affair, Harry Jr vanished (apparently from the face of the Earth) and took his poor demented mother with him. Harry Sr, searching far and wide for his wife and infant son, despaired of ever finding them: in the Möbius Continuum their life-threads disappeared mysteriously into some otherworldly place where even he could not follow.