Ona watched her Teacher turn around. The helmetless Ms. Coron wore a dress that exposed the skin of her arms and legs in a way that she had taught the children was beautiful and natural. Intellectually, Ona understood that the frigid air in the classroom, cold enough to give her and the other children hypothermia even with brief exposure, was perfectly suited to the Teachers. But she couldn’t help shivering at the sight. The airtight heat-suit scraped over Ona’s scales, and the rustling noise reverberated loudly in her helmet.