Death in the Wrong Room is a 1947 mystery thriller novel by Anthony Gilbert, the pen name of British writer Lucy Beatrice Malleson.

[1] It is the nineteenth in her long-running series featuring the unscrupulous London solicitor Arthur Crook, one of the more unorthodox detectives of the Golden Age.

[2] Shortly after the Second World War the domineering Lady Bute comes to live as a paying guest at the home built by Colonel Anstruther and now run by his daughter.

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