They should be there somewhere - On Fire season/the huge depth of land-linked native mythology is rather a big part of the setting to ignore. I am partway intrigued by your mentions of Rivers of London (especially native breeds of fey) and the bits of the comics I've seen online - is it a thing I'd get on with, you think? I seem to have become wary and estranged from fiction in my old age, but I miss it terribly.