The Sentinels Time gets distorted when

deirdre glanced apologetically toward tansea; normally, so late into interaction, she would not encroach, but she knew her father had felt for peregrine (simply not the extent) and that he would want peregrine to know of his fate. she had wondered if this might be the man himself, but the wind had not told her that much as it shifted to lure her nearer. that she might be able to speak of it in a way he might wish it, too, was important to her. 

she took a deep breath in and explained, peregrine knows most of it; when your leader had been here, my father had been ill. there had been a terrible plague of creatures that devoured all that was green in these lands. there were no herbs to give him that would aid him... she had to pause, to steel herself for a moment. this stranger need not see her weep! she grit her jaw for a moment, but her voice was still rich with emotion, and her emerald eyes glistened, a dam threatening to break. all were greatly weakened by the plague, but my father perhaps most of all. he sacrificed food for the cubs within the pack, so that the future generation might live beyond the curse that touched the wilds. it was not for naught, she was proud of this, but her heart ached. he is in a place where hunger cannot harm him. he was malnourished, and had wandered into the heat where it all took its toll upon him, where he had his stroke, and collapsed to the earth, and ceased to live and breathe. none knew why he had done this, and deirdre still pondered this; she wished she had been beside him, that morning, so that she could alter his path!