What did Karana do to cope with the death of Rontu?

Karana stayed put and worked quietly..... she kept to herself in her grief.

That winter I did not go to the reef at all. I ate the things I had stored and left the house only to get water at the spring. It was a winter of strong winds and rain and wild seas that crashed against the cliffs, so I would not have gone out much even if Rontu had been there. During that time I made four snares from notched branches.