After 20 pages I´m certain that this book isn´t for me.
One of the teachers of the boarding school has an affair with the headmasters wife. The way Nicholas Blake (a.k.a. Cecil Day-Lewis) writes about this affair, he seems to be pretty okay with it - while I feel the need to gag whenever I´m reading about adultery described in such way. Thanks to Google I have found out that Cecil Day-Lewis had an extramarital affair himself with a woman named Rosamund Lehmann, so this might explain it. I´m still disgusted by it, though.