Spellbound

You are a Magic Knight, the hero of Finders Keepers. Your tutor Gimbal the Wizard has been trying out some very old spells to make his rice pudding taste nicer, unfortunately the scribes who translated the spells from very ancient English to slightly ancient English made some mistakes with the wording and Gimbal is in trouble.

The spell sent Gimbal to the mythical castle of Karn and dragged seven other people with him. As gimbal becomes trapped he projects a last faint message back to you across the time stream. I've taught you enough to rescue us all. Magic Knight, you are our only hope!!