Island of the Mad is a 2018 mystery novel by American author Laurie R. King.

Fifteenth in the Mary Russell series, the story features married detectives Mary Russell and Sherlock Holmes.

The events of the novel follow shortly after that of The Murder of Mary Russell.

[2] [3] The audiobook published by Recorded Books is narrated by Jenny Sterlin.

This article about a historical mystery novel of the 2010s is a stub.