Aka, I read my way through the rest of the Rivers of London series. Now some commenters to my review of the first volume had an "even/uneven numbers" theory similar to the Star Trek movies. My own experience was that the degree to which I liked an individual entry was directly related to the Lesley content of same. Much Lesley in 3 and 4 meant these were my favourites.

( More spoilerly observations below the cut. ) So I hear the sixth volume is due this autumn? Excellent. *pre-orders*