Aw man, who the hell brung moon moon along? :P

In all seriousness, this is a CM Partner mod that adds Moon Moon the wolf.

Moon Moon can be found in Bruma, look around the area in bruma where the player house usually is.

Moon Moon is the same level as the player, and has a few effects to make him useful.

Moon Moon is Immune to Disease, Paralysis, and Poison, he also takes 10% less damage from Normal Weapons.
Moon Moon also takes 25% less damage from most sources(25% shield)
Moon Moon regenerates health at 4 points a second, so you don't need to heal him after every battle.
Lastly, Moon Moon has a 150 point Fortify Health, so he can tank a little more for people who have lower health, since CM Partners that level with the player tend to have health based off the player, the fortify health was needed to make him a bit tanky.

Oh and Moon Moon also has the same elemental resistances as a standard wolf.

Have fun! :)