Gale told me about his tryst with Mystra and the netherise magic bomb inside of him one night, then the following night he said I had to agree to help him with something but couldn't say what it was before I agreed.
I was like awesome, new quest! But it turns out he's a bit senile from magic overload and just told me he needs to consume magic from artifacts but can't say why. As he already told me the night before either something is out of order. I barely used the camp before the goblin massacre celebration - maybe 2-3 times - so this might not have triggered at the right point or maybe it isn't tagging the conversations properly?