I'm currently reading The Murder of Roger Ackroyd, widely regarded as Agatha Christie's masterpiece.
I love her books - though more out of curiosity and sentimental nostalgia for the interwar era than for their plots.
Down the years I've worked my way through most of the collection - but rarely have I guessed the identity of the guilty party prior to the denouement.
Indeed, this is not something I strive for - I'm content to leave the sleuthing to Monsieur Poirot et al.
However, for some reason in this case, by the end of Chapter 4 (of 27), I feel certain about 'whodunit'.
Perhaps I've struck lucky with a stray observation - but based on my hypothesis the 'Queen of Crime' appears over-generous with her clues.
Of course, she's also the Queen of Red Herrings, so maybe I've taken the bait!