Nathan publications released six softback illustrated books that reproduced the Day Of The Dungeon Master, The Last Illusion, The Garden Of Zinn, The Treasure Of Tardos, The Traitor and The Box episodes. The publications are in French.
Le Grand Jour is the version of the Day Of The Dungeon Master episode and translates as "The Big Day".
Translation: Antoinette De Jorna.
Editor: Fernand Nathan.
Dimensions: 210 (h) x 205 (w) mm.
Below is a video of the scanned pages.