The Appleby stories are classic British puzzlers, with literary references and a wry outlook. Although not read much today, classic mystery buffs keep coming back to Innes and Appleby for a satisfying "fix."
Appleby's End was the tenth book in the series.
BBC Radio's Inspector Appleby Mysteries aired adaptations of at least two of the books -- this one and Lament for a Maker. Appleby's End was originally in four parts; all four are combined in the link below, making the program run just shy of two hours -- much longer than other radio programs I have blogged about on Thursday, but certainly worth the time put into listening.