The country house murders

"Tom Morris, busy cataloguing the library of Plumwood Hall, is in a fix. Three days before, a member of the family keeled over at afternoon tea after eating a slice of fruit cake laced with poison. And Tom has been fingered by the weasel-like Inspector Hyde as chief suspect. The young scholar turns to the only person who can help: his old Oxford tutor, Clive Staples (Jack) Lewis."--Page 4 of cover.