Heretic
| Book | Heretic |
| Copyright Holder | Bernard Cornwell |
| Series | The Grail Quest |
| Imprint | Harper |
| Publisher | HarperCollins, HarperCollins Publishers |
| First Published by | HarperCollins Publishers Ltd |
| Typeset by | Rowland Phototypesetting Ltd |
| Printed and Bound by | Clays Ltd, St Ives plc |
| Format | Paperback |
| Language | English |
| Location | UK |
| Copyright | 2004 |
| This Edition Published | 2009 |
| Pages / Font | 448 pages / Potscript Linotype Naskerville |
| ISBN | 978-0-00731032-6 |
| Barcode | 9 780007 310326 |
| Price | £8.99 UK |
| Price | $15.99 CAN |
Added by Supernaut1970