Physik
| Author | Angie Sage |
|---|---|
| Cover artist | Mark Zug (illustrator) |
| Language | English |
| Series | Septimus Heap (Book 3) |
| Genre | Fantasy novel |
| Publisher | HarperCollins (US) Bloomsbury Publishing (UK) |
Publication date | March 2007 |
| Publication place | England |
| Media type | Print (hardback & paperback) |
| Pages | 576 (paperback edition) |
| ISBN | 0060577398 (UK paperback edition) |
| OCLC | 70174870 |
| Preceded by | Flyte |
| Followed by | Queste |
Physik is a fantasy novel by Angie Sage. It is the third book in the seven-book Septimus Heap series. The story focuses primarily on the 500-year-old spirit of Queen Etheldredda, who attempts to use Septimus Heap to attain immortality.