Toward the End of Time
How does Ben refer to his ex-wife at the Grandparents' Day celebration in the novel, Toward the End of Time?
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When Ben sees Perdita during the Grandparents' Day celebration at the school of one of their grandsons, he refers to her as the "gaunt old witch" who "contains a beauty that I am one of the last on earth to still descry."
Toward the End of Time