Pupa - Black swallowtails spend winter as chrysalids, emerging as butterflies when warm weather returns.
蛹期—黑燕尾蝶冬天时变身蝶蛹，气候回暖时破茧而出，变成蝴蝶。
2
The Chrysalids tackles the idea of genetic mutation, possibly caused by nuclear war, and the Kraken Wakes tells of a world drowned by rising sea levels.