Slaves of the Mastery
| Author | William Nicholson |
|---|---|
| Cover artist | Mark Edwards |
| Language | English |
| Series | Wind on Fire trilogy |
| Genre | Children's Fantasy novel |
| Publisher | Egmont Press |
Publication date | 2001 |
| Publication place | United Kingdom |
| Pages | 352 pp |
| ISBN | 0-641-77780-9 |
| Preceded by | The Wind Singer |
| Followed by | Firesong |
Slaves of the Mastery is the second book in the Wind On Fire trilogy by William Nicholson. It picks up the story of twins Kestrel and Bowman five years on from the closing chapter of The Wind Singer. It was first published in 2001.