Finally read this :) I find my favourite mystery novels are the ones where i'm enjoying the story so much i don't bother trying to work out who dun it with any real attempt. Enjoyed the multiple narratives and the different ways (i always enjoy diaries and letters :)). Hmm what else to say but i think i like Betteredge just as much as Cuff did :) And about Drusilla Clack (what an awesome name :)).... even the characters i dislike are written so well :) 
 Great read.