It is directly down from where you kill Blood Red. You go into the room, I think you battle some zombies (can't remember right now), then go past the table with a blue jar sitting on it, then right down the hall to the rooms with the cots. before you turn right to go down the hall, there is a cage with a man and some zombies in it. The cage looks doorless, but if you try to talk to the man, you get zapped by electricity ... game over. Just to the right before the rooms with the cots, (and two more cages) is a blue arrow for you to enter the passage. Go into the passage and down a ways and you see another blue arrow above a cot in the man's cage. Walkthrough says to go in that way, talk to the man, fight him, and get a key. I can't locate the side entrance!!!
Thanks for all/any help

PS: I don't know how to do a screen shot

PPS: I just read in the walkthrough that Random realizes the man I'm talking about is Earnest, one of the students from the school, if that helps. This is all down that wierd hall thingy from where you first see Yveen.