The day everything changed started off normal. Hannah Skrastins was in the middle of a club volleyball game in Vail when she began to feel defeated. Her energy was fleeting. Her coordination was off. Her motivation wasn't quite there. "She's a good volleyball player," said her dad, Tim, "but she couldn't get to the ball that day." An MRI scan and a few days later, the family found out Hannah had a medulloblastoma brain tumor the size of a tennis ball. It screwed up her balance. Headaches were persistent. And eventually, it took away most of her vision as she went through chemotherapy. Her life wasn't the same. But in February 2015, she was cleared of the cancer. That didn't mean things would go back to normal. It was only the beginning.