La Lettre secrète
| Book | The Secret Peace |
| Adapted by | William McCay |
| Based on the screenplay by | George Lucas |
| Creative Director | Vic Armstrong |
| Translated by | Sogedicom |
| Printed and Bound by | Brodard et Taupin |
| Publisher | Éditions Fleurus |
| Series | The Young Indiana Jones Chronicles |
| Format | Paperback |
| Language | French |
| Location | France |
| This Edition Published | 1993-02 |
| Pages / Font | 126 pages |
| ISBN | 2.215.03040.2 |
| Notes | Imprimé en France |
Added by Agathusia