I’d not read Agatha Christie for decades. And Then There Were None was a favourite of mine as a teenager.

Secret Adversary is a surprisingly sophisticated and complicated murder mystery … done in a very lighthearted way.

Very easy to read.

The book introduces the characters of Tommy and Tuppence who feature in three other Christie novels and one collection of short stories …

The Secret Adversary was the second Christie work to be turned into a film. …

The novel was adapted twice for television, in 1983 and in 2014 …