Portal of Evil
| Book | Portal of Evil |
| Format | Mass-Market Paperback |
| Language | English |
| First Published | 1989 |
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| Franchise | Fighting Fantasy |
| Imprint | Puffin Books |
| Publisher | Penguin Books Ltd |
| Author | Peter Darvill-Evans |
| Cover Art by | David Gallagher |
| Illustrator | Alan Langford |
| Maps | Leo Hartas |
| Copyright Holder (Text) | Peter Darvill-Evans |
| Copyright Holder (Illustrations) | Alan Langford, Leo Hartas |
| Concept by | Steve Jackson, Ian Livingstone |
| Typeset by | Rowland Phototypesetting Ltd |
| Printed and Bound by | Cox & Wyman Ltd |
| Format | Mass-Market Paperback |
| Language | English |
| First Published | 1989 |
| Copyright | 1989 |
| Pages / Font | Linotron Palatino |
| Series Number | 37 |
| Edition No. | 1 |
| Impression/Printing No. | 1 |
| ISBN | 0-14-032839-4 |
| Barcode (EAN) | 9 780140 328394 |
| EAN 5 | 90000 |
| Price | U.K. £2.50 / N.Z. $7.95 (incl. GST) / CAN. $4.95 |
| Other | First published 1989 |
| Notes | UK A-format size. Edition subformat: franchise-creators' names in foil leaf, no title number on the front or spine. |
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