"The mask" is a relatively strong Dunmer with his own equipment.
He's a few level above the player's level and he can be found at Old Hrol'dan Inn.
One time a month (at the 15th) he travels to Whiterun.

If you find any bugs please write them in the comments so that I can fix 'em.
If you like the mod or if you wanna have more follower mods, like the mod and share your Ideas for new mods in the comments. 
Have fun at playing Skyrim wishes 
Variag