" As Kyoshi lay there, she could feel the gift Kuruk had given her. The battle between the previous Avatar and Father Glowworm had left identifying scars on both parties, marks carved so deep as to be permanent.

She and Yun were inheritors of that legacy. She could tell where he was. It was a faint presence, flickering at this distance, but it had direction. She knew if she reached for him, extended the flow of her spirit, she could follow him to his location. He'd likely tracked her through the Fire Nation using the same method. They were each other's beacons, two torches in the darkness.

And he'd used that connection over and over again, to make her suffer. "

― F.C. Yee , The Shadow of Kyoshi (The Kyoshi Novels, #2)