They Watched by Night
First Edition (US) | |
| Author | John Rhode |
|---|---|
| Language | English |
| Series | Lancelot Priestley |
| Genre | Detective |
| Publisher | Collins Crime Club (UK) Dodd Mead (US) |
Publication date | 1941 |
| Publication place | United Kingdom |
| Media type | |
| Preceded by | Death at the Helm |
| Followed by | The Fourth Bomb |
They Watched by Night is a 1941 detective novel by John Rhode, the pen name of the British writer Cecil Street. It is the thirty fifth in his long-running series of novels featuring Lancelot Priestley, a Golden Age armchair detective. It was published in the United States by Dodd Mead with the alternative title Signal for Death.