600 years from now on the world of Fulgor Roger Blackstone, son of two Pilots (long-time alien spies, masquerading as ordinary humans) aches to see the mythical Pilot's city of Labyrinth, in the fractal ur-continuum of mu-space. In 8th century Norseland, a young carl called Wulf kills a man, watched by a mysterious warrior who bears the mark of Loki the Trickster God; in 1920s Zurich, Gavriela Silberstein enters the long, baroque central hallway of the Eidgenossische Technische Hochschule where Einstein so recently studied; and on a nameless world, not knowing his human heritage, a silver-skinned youth tries to snatch back an Idea - but it floats away on gentle magnetic currents. There are others across the ages, all with three things in common: they glimpse shards of darkness moving at the edge of their vision; they hear echoes of a dark, disturbing musical chord; and they will dream of joining a group called the Ragnarok Council.