Only literary theory can explain the life-changing success of David Cameron

MPs returned to Westminster this week during a spell of hot, sultry weather more characteristic of late July than mid-October. They sweated up in the corridors, mopped their brows in the chamber, sat in shirtsleeves on the Commons terrace (apart from the Liberal Democrats, who at first did not return at all; the recall of Parliament at the end of a 10-week break was a therapeutic ‘away day’ for party spokesmen.