Isso parece muito com Necroscópio, por Brian Lumley, publicado em 1986.
O protagonista, Harry Keogh, pode falar com os mortos e aprender com eles, incluindo aprender fórmulas do próprio Mobius e usá-lo para viajar pelo mundo e outras dimensões (e tempo, mas não vamos lá):
Harry Keogh (born Harry Snaith) is born with the ability to speak to the dead. As he grows up and his power manifests itself, he befriends the dead. From them he learns that death is not the end, that although the body dies – the mind goes on, and the dead continue to improve and expand in death what they loved in life. From him, the once silent Great Majority learns to communicate amongst themselves, and love him for it. In turn, they offer him their knowledge: while at school, a deceased math teacher helps him with his developing mathematics talent and an ex-army sergeant teacher imparts self-defense skills.
As the years go by, he has recurring dreams about his mother, dead after an apparent ice-skating accident but in reality murdered by her husband and Harry's stepfather Victor Shukshin. Shukshin is a psychic sensitive, a defector sleeper agent planted in England by the Soviet E-Branch. In his self-appointed mission to avenge his mother's death, Harry is dragged into a web of espionage involving British and Soviet ESP agencies.
This leads to Harry learning to use the Möbius Continuum (from its discoverer August Ferdinand Möbius himself, at his grave in Leipzig, Germany), which allows him to instantaneously transport himself anywhere in the multi-dimensional universe.