I'd been earlier to Temple of the Sun to retrieve the chalice and restore the Free Haven Temple, but there was no way I could tackle the minotaur king at the level I was then, so I left him, and the fact I had done so compleetely slipped my mind. However, I've just managed to dispose of the golden dragon in the Temple of the Snake (it gave me Morgan! ) so I now ought to be able to take the minotaur king.
I've gone back to the laptop I had in the late 1990's, so I'm still playing the v1.0 game off my original discs. However, it's not installed perfectly. The Easter Egg in the Silver Helm Outpost on Mist didn't show up