Edward Mordrake As Part Of A Role-playing Campaign
If you don't know the story of Edward Mordrake its a really interesting one that I think will make for a good campaign. A dungeon master might want to consider it.
The duplicate face could not see or eat or speak out loud but was said to "Sneer while Mordrake was happy" and "Smile while Mordrake was weeping". Mordrake repeatedly begged doctors to have his "Demon face" removed, claiming that it whispered things that "One would only speak about in hell" at night, but no doctor would attempt it. Mordrake died according to the legend by committing suicide at the age of 23.
Source 8d