Deryn Blackwell, 14, from Bristol, had been told that he wouldn&#x27;t see Christmas. He was one of just five people in the world that currently suffer the same rare disease, and doctors were trying their very best to just keep him alive. Miraculously, and to the puzzlement of his doctors, he is now on the road to recovery, and Deryn has had to come to terms with the fact that he will live to see 15