TWO Caitlin slid back the door to the barn and squinted at a world covered in snow. White sunlight bounced off of everything. She brought her hands to her eyes, feeling a pain she had never quite experienced: her eyes were absolutely killing her. Caleb stepped out beside her, as he was finishing wrapping his arms and neck in a thin, clear material. It almost looked like Saran wrap, but it seemed to dissolve in his skin as he put it on. She couldn’t even tell it was there. “What’s that?” “Skin wrap,” he said, looking down as he wrapped it carefully again and again over his arms and shoulders. “It’s what allows us to go out in the sunlight. Otherwise, our skin would burn.” He looked her over. “You don’t need it—yet.” “How do you know?” she asked. “Trust me,” he said, grinning. “You’d k

