The Nursing Home Murder
by Ngaio Marsh (Geoffrey Bles, 1935); audiobook read by James Saxon (AudioGO, 2010)
The nursing home (to the modern reader, operating theatre) murder is quite diverting once it gathers steam. Unfortunately, the first fifth of the book is groundwork. Inspector Alleyn—himself unimpeachable—is a late arrival and has to recover ground already laborious trodden.