Investigating a rare genetic disorder that causes those who suffer from it to grow a second skeleton:

“Within a few years, she would begin to grow new bones that would stretch across her body, some fusing to her original skeleton. Bone by bone, the disease would lock her into stillness. The Mayo doctors didn’t tell Peeper’s parents that. All they did say was that Peeper would not live long.

“‘Basically, my parents were told there was nothing that could be done,’ Peeper told me in October. ‘They should just take me home and enjoy their time with me, because I would probably not live to be a teenager.’