There is a rumour that it is possible to win The Citadel of Chaos without rolling dice. This isn't true - you must do battle at least once. Towards the end, there is a hydra you can fight. It is possible to avoid fighting the hydra if you have the golden fleece, but to get that you need the silver comb, and to get that you need to fight and kill s Gark.
The Internet would have you believe that you have to kill the bonekeeper in Crypt of the Sorceror. You don't. In fact, absolutely nothing good comes of attacking him.