This is Fez IV: Wizard’s Revenge (1986). For some reason (not that I am complaining, really), it recycles a Michael Whelan Elric cover (I guess because a lich is the prime villain).

So, the Wizard in question here isn’t Fez; rather, the time-wizard is who the revenge is aimed at. Basically, Fez pulled too many strings and stepped on too many toes if the first trilogy of modules and in the second, bills start coming due. At this point, I find the metastory, which has largely happened off-screen as set-up for the previous adventures, extremely hard to follow. Thanks to Mephistopheles, Young Fez meets Old Fez, resulting in a paradox that allows the lich villain to mess with all Fezes?
This is complicated by the worst pre-gen intro in the series. Four elves go through their coming of age ceremony while the players of the four dwarves sit and wait, at which point the elves have to stew while the dwarves come of age. Then they join forces to help Fez and bring peace and unity to their riven kingdoms or something. I dunno.
The saving grace of this adventure is the introduction of Fez’s new spell, which rewinds time ten seconds in case things go wrong in combat. This one also leans into Fez’s fandom for the Ohio State Buckeyes, which, I don’t care about college football, but this gag will always get a chuckle out of me. I love that Fez is a perpetual student, too. And his enthusiasm for American beer. It all smacks of Face in the Frost in a way I approve of, even if the rest of this module leaves me pretty cold.

