How MANY Undead monsters may join one?

[Mister Ed]

Originally Posted by Iceman_B

Apologies if this has been answered somewhere else, but I really could not find it, not even in the FAQ.

The latest version of the Munchkin rules state that any Undead monster may be wandered in when a player is fighting an Undead monster.
But how many may join? Is there a limit at all?
This is never mentioned explicitly.

There is no limit. Whatever Undead monsters people have in their hands can be played to join the combat.