It seems more and more likely that Undead is at the very least a group. Still: the fact that rana was not attacked and zombiefied (or was, but in that case: why volunteer this information?), plus the fact that Yuna is so open about it, points to a relatively benign group. Although maybe we shouldn't take any chances. You can't trust them Undeads, no sirree.

I am slowly going to the point of voting for the one known Undead (Yuna), if only to get confirmation on the group. But before I do that: do you care to explain what kind of action you were trying to do, FT? Are you the zombie who visited rana for some benign reason?

In any case, the zombie thing could be an RPS miss, or a specific search for a specific item (as in my game when FT and galadriel could present a bullet to every person during the night, but it was only successful when Isaac was the target - in this case they got a gun in return). In the first case, the zombie did try to attack rana but was bested by him. In-game-wise, for the second possibility, I can totally see a brain as an item in a treasure hunt. Googling for brains in Discworld brings me either to the newest Discworld novel (Judgment Day - "As the finest legal brains in Discworld (a zombie and a priest) gird their loins to do battle" ) or Troll brains, which are silicon based and which operate in a similar fashion to computer circuits. So, wild guess: the Zombie is looking for a Troll, to crack open his skull, scoop out the brain and build a supercomputer?

(In connection with my thieves question, there's also a piece of fan fic called The Brain Thief... hollimichele is not an alias of Isaac, is it? )