The exclamation nuqjatlh is almost always addressed to the person who did the speaking. I suppose theoretically, it's not impossible to imagine you said it to someone else and then added Torg's name because he is more likely to answer. But that's stretching the context quite a bit and you should learn it as meaning, "What did you say?"
The expression nuqjatlh is introduced in the very first unit, "Phrases", and is mentioned in the tips and notes to that unit.
You should be able to find them at https://www.duolingo.com/skill/kl/Useful-phrases/tips-and-notes .