[…] detective novels are not novels of detection, still less of revelation, still less of solution. Those are all necessary, but not only are they insufficient, but they are in certain ways regrettable. These are novels of potentiality. Quantum narratives. Their power isn’t in their final acts, but in the profusion of superpositions before them, the could-bes, what-ifs and never-knows. Until that final chapter, each of those is as real and true as all the others, jostling realities all dreamed up by the crime, none trapped in vulgar facticity. That’s why the most important sentence in a murder mystery isn’t the one starting ‘The murderer is…’ – which no matter how necessary and fabulously executed is an act of unspeakable narrative winnowing – but is the snarled expostulation halfway through: ‘Everyone’s a suspect.’ Quite. When all those suspects become one certainty, it’s a collapse, and a let-down. How can it not be? We’ve been banished from an Eden of oscillation.

Author: China Miéville