| Humans who carry the silent genes have become subject to narcoma, which causes them to sleep for increasingly large portions of the day. |
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| The other central characters are Dr Powers, who has become subject to narcoma. |
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| Evidence it seems to me is complete that he was not exposed to the gas in sufficient degree to produce narcoma or poisoning. |
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| Only five years had elapsed since the first narcoma syndrome had been recognized, but already huge government hospitals in the east were being readied for intakes in the thousands. |
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| He is a man whose brilliance cannot solve the narcoma epidemic but whose sub or semi-conscious self chooses an intuitively apt solution for himself. |
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