Robert Harris’s new novel opens on a bleak evening in 1468, as a young priest makes his way wearily towards the village of Addicott St George. The parish parson, Father Thomas Lacy, has recently died and Christopher Fairfax has been sent by the Bishop of Exeter to oversee the burial. It’s supposed to be a quick job but, when Fairfax arrives, he begins to hear rumours of murder that he feels bound to investigate. Even worse, he makes shocking discoveries in Father Lacy’s study: the former priest was dabbling in dangerous heresies, which seem to have had some bearing on his mysterious death. And that, my friends, is all I feel able to say before the cut. I will add that I found this an engaging, amusing and unexpectedly engrossing novel, and that if you’ve enjoyed Harris’s earlier works you would do well to give this a go. But The Second Sleep is a novel best approached in complete innocence. If you haven’t yet read it, but think you might like to, I urge you to stop right here. Don’t read past the cut, where there will be spoilers. Come back when you’re done and, while you’re reading, pay attention. Those with sharp eyes will realise pretty swiftly that all is not quite as it seems.