Put Out The Light is a 1931 mystery novel by writer Ethel Lina White.

Ethel Lina White was a renowned mystery writer in both Britain and the United States in the 1930s and 40s.

She lives in a solitary house, Jamaica Court, on a hill, keeping her fellow five inmates financially imprisoned.

She interferes in their love affairs and keeps their lives under complete control.

As with most of White's books, it fell out of print after her death in 1944 until the 1960s, when re-interest in gothic fiction skyrocketed[3] and it was retitled Sinister Light.