Started the Harrison on the trip back and concluded that Viriconium is in fact magic realism. Call the city Buenos Aires and write it in Spanish and you couldn't tell it from Garcia Marquez. Then went to see which Viriconia I do have, and discovered a long-standing and hitherto unresolved mental confusion, in which I thought Harrison was Vance, Viriconium was the Dying Earth, and both were somehow related to John Brunner's Traveler in Black. Now I know they're not. Go me.
This is fine, because I'm finding Un Lun Dun heavy going. It would make a good Miyazaki film; it probably should *be* an anime film and not a book, because (for once, for me) there's just too many damn visuals floating over the city, and meanwhile I'm waiting for the story to start. Maybe should be reading The Borribles instead. Or the others in my stack of Horrible London books-- Dan Leno and the Limehouse Golem, Jack Maggs, An Instance of the Fingerpost, Chatterton. Why is there so much Horrible London out there, and so little Amazing London like Aaronovitch's?