The girls looked at him with depressed looks on their faces.
"Are you going to leave us too?" Mona asked with tears threatening to fall off of her cheeks.
After her sister returned, dead, her father could not bare it anymore. When she was away at least there was hope that she was doing okay. But now that he was sure she was dead, he could not take looking at Mona's face everyday.
He saw Zena's face whenever he looked at Mona, when he did, he would feel guilty about everything that he has done, including getting enlightened at a bad time and was not able to save her even though she was right next to him. There was no excuse for suddenly leaving his daugter, again. But his mind completely broke down leaving him wandering across the ice fields with no purpose.