The internet has it's limitations, I love wikipedia and I don't even want to think about life before Google Earth but sometimes you have to dig into some books. These are the current crop for the research phase of Book 4 (and some for Book 5).
A Home of Their Own, a history of Battersea Dog's Home by Garry Jenkins. The first home was actually off the Holloway Road. I've just done a research trip there where I took lots of notes and utterly failed to ask any of the questions I now realise I needed to ask.
Gangs of London: 100 Years of Mob Warfare by Brian McDonald. What's it about? It's about flower arranging isn't it? You f**cking muppet!