It was the custom between Gunnar and Njal, because of their close friendship, that every winter one of them would invite the other to his home for a winter feast. T/F
Answer: True
The friendship between Gunnar and Njal is one of the strongest in saga literature. It is at this feast, when Hallgerd is asked to give up her seat in favor of Thorhalla, the daughter-in-law of Njal and Bergthora, that conflict first arises between the two families although Gunnar and Njal never allow it to become an open feud.