[Azaghal]

Hacked my way thru the Ice Temple and met Nickodemus on the second level. He was very cooperative and helped me when I promised to do him a favor he would name later. Well, I slayed each and every hostile creature in the temple by now, freed Nathaniel on level one, who announced he would destroy the Temple as soon as we left it, but still Nickodemus doesn't ask for his favor. Whenever I talk to him about it, he says something like "Not now, but soon." I have tried resting, but to no avail. I am about to leave, but after Nathaniel'S demolition work I am sure I won't be able to return. Did I miss something? How can I make Nickodemus ask for his favor? Thanks in advance.