Was It Murder? James Hilton

When Colin Revell gained a reputation at Oxford as an amateur detective, he's asked by the Headmaster of his old school, Oakington, to make enquiries into a strange accident - a boy has been killed by the fall of a heavy, old-fashioned gas fitting in the dormitory. Revell finds nothing of interest - but then the corpse of the dead boy's elder brother is found in the school's swimming pool. Revell again rushes to Oakington; but now a Scotland Yard detective is investigating. An exceptionally diabolical crime is discovered but to prove it is a difficult problem which depends not on clues, but by exploring and exploiting the characters of the various suspects. A very different offering from the author of Goodbye, Mr Chips. Originally published as Murder At School by 'Glen Trevor'.