Arriving in Occupied Japan to record the effects of the bomb at Hiroshima, Leith meets Benedict and Helen Driscoll, the Australian son and daughter of a tyrannical medical administrator. Benedict, at twenty, is doomed by a rare degenerative disease. Helen, still younger, is inseparable from her brother. Precocious, brilliant, sensitive, at home in the books they read together, these two have been, in Leith's words, delivered by literature. The young people capture Leith's sympathy; indeed, he finds himself struggling with his attraction to this girl whose feelings are as intense as his own and from whom he will soon be fatefully parted.