Thank you Tonweya -- you are awesome! I thought that the GIFTS was important... but I also thought I'd already tried saying every keyword to them. Well, I've rescued the nephilim child now! (But I think I've bugged the scenario by completing the tasks out of order -- Tomas keeps telling me to destroy the altar in Trent -- which I already have -- and doesn't respond (in a useful fashion) to any likely keyword (trent, altar, undead, slith, cave, allies, welcome, feast, ... ))