| Treason keep | |
| Author: | Jennifer Fallon |
| Country: | Australia |
| Language: | English |
| Series: | The Demon Child |
| Genre: | Fantasy |
| Publisher: | HarperCollins |
| Pub Date: | 24 January 2001[1] |
| Media Type: | Print (Paperback & Hardback) |
| Pages: | 674 (first edition) |
| Isbn: | 0-7322-6621-1 |
| Preceded By: | Medalon |
| Followed By: | Harshini |
Treason Keep is a fantasy novel written by Australian author Jennifer Fallon. It is the second in The Demon Child trilogy; the other two are Medalon and Harshini.
On the brink of death, R'shiel is taken to the Harshini haven of Sanctuary, where crucial decisions are being made.