With the saga drawing closer to a conclusion with each passing day, the tale of Tyr Ragnarsson was only going to get a lot darker for a boy with such a fate on his shoulder, it was difficult knowing the path that Tyr would choose or if he would even live long enough to accomplish that fate.
Noa proved to be a great find for he was Tyr's way into a hostile clan and the only reason that Gissur did not kill him on the spot.
Gissur was a primal creature and knew the potential that the boy had and only after he beat him to a pulp did he realize that potential was still a long way from manifesting.
Gissur's wife had told him how to kill the younger warrior but she also explicitly told him that Tyr could not be killed until a certain condition was met.
But unknown to his wife, Gissur never thought her prophecies to be a hundred percent for even fate could be altered if the gods willed it or there would be no loopholes in the visions she saw.