Aka Fuck Heather.
As you walk around, you come across a nossie that celerites (my own word) into combat with those two clown things and gets instantly vaporized. Once I managed to save him and I don't know how. Make him saveable (give him more than 2 hitpoints).
Then give him a line or two.
"Thanks mate! I'll find a way to pay you back."
-"Yeah why don't you help me clear the rest of the sewers?"
-"You keep lookin', mate."
Thus two options, a companion for a limited time, or a boon:
As you go looking for Betram's CD, there in the building in the cemetery he pops up. "Heard you were looking for this." Perhaps the only way for a non-nossie character to complete the quest?