Revenge of Zor

Description
Revenge of Zor is a text adventure for the BBC Micro and Electron, and the sequel to Ring of Time.
After recovering the evil magician Zor's Ring of Time, the player is sucked through a time vortex to another time and place. The player must travel the land to find and defeat the evil Zor. The player will deal with an evil hydra, navigate dangerous underground caverns, and find a magic sword during their quest.
All commands are via VERB NOUN entry, and there is a save/restore feature.