 | This article consists almost entirely of a plot summary. (January 2021) |
 The Australian cover for Lord Sunday. | |
| Author | Garth Nix |
|---|---|
| Language | English |
| Series | The Keys to the Kingdom |
| Genre | Young adult novel |
| Publisher | Allen & Unwin (Aus) |
Publication date | 1 February 2010 (Aus) 16 March 2010 (US) 4 March (UK) |
| Publication place | Australia |
| Media type | Print (Paperback) |
| Pages | 336 |
| ISBN | 978-1-74114-591-5 |
| Preceded by | Superior Saturday |
Lord Sunday is the seventh book concluding Garth Nix's The Keys to the Kingdom series. It tells the last part of the adventures of a boy named Arthur in his quest to take back a magical world.
The book was released in Australia on 1 February 2010, the U.K. on 4 March 2010, and the U.S. on 16 March 2010.