They weren't quite sure how animal companions were treated elsewhere, but everyone knew that the most formal and least likely to be abandoned by their animal companions were those in Hill Valley.
Except for some large cats who, for special reasons, chose to follow their leaders, other animals from Hill Valley rarely dissolved their contracts with their Undead Tribe friends.
Especially like their Proud Sky Alliance, where whole regiments of animal troops basically followed their companions out into the world.
Then, a situation arose that was acceptable to the Undead Tribe, but not very pleasing to the animal companions... In places like Toril, although the Undead Tribe seemed to enjoy unlimited glory, in reality, that was only when dealing with the Toril humans.
Every time they were dragged into those battlefields of gods and demons, it almost always ended in total annihilation.
