The trick is in making the stuffing so good, you overlook the skeleton of the beast. The spy-thriller-skeleton is all there — the subtle tips to “tradecraft,” “lamplighters,” “janitors,” and the lot; the parade of secondary characters being plied with drink to spill their portion of the narrative; the double- and triple-crosses — but the body of it is so good you just go along for the thrillride. Smiley is called in to ferret out a mole in British intelligence after a deep cover operation goes haywire in Czechoslovakia. I wanted not to see Gary Oldman (or Sir Alec Guinness for that matter) before I’d read this for myself. Le Carré seldom fails me.