How do you beat the dragon in Heroes of the Lance?

Solution 1:

I never had played that game all the way through on the C64 but in the Nintendo version of it, you can defeat the dragon at the end by throwing the blue crystal staff at it.

The staff could be used by Goldmoon, Riverwind, Sturm or Caramon and the guys could only get it after Goldmoon croaked. In the NES version I killed the dragon using Caramon equipped the Blue Crystal Staff. (I only used Caramon because most of my other guys were dead by that point...)

[UPDATE:] I found a walkthrough for the NES version (If I recall correctly they were basically the same game):

http://www.gamefaqs.com/nes/587335-advanced-dungeons-and-dragons-heroes-of-the-lance/faqs/13758