Who the hell is Brontus or whatever in sons of sparta, and where do you find him?

i just got back with the dudes chisel, and after stopping off in his shop and not finding him, someone randomly calls out to Kratos and says some is looking for him. probably getting the name wrong, but it was something like Brontus. I looked all over, but ran into no one in the town that had anything for me. and i've now moved on to the sewer dungeon place, but still this plot point hasn't gone anywhere