They beat him. They deprived him. They ridiculed him. They broke his heart. But they couldn't break his spirit.
Billy Casper comes from the poorest end of town (Barnsley, England), he can't concentrate at school and does very badly. He is beaten up regularly by his elder brother and disregarded by everyone. Then one day he sees a wild Kestrel and this leads to a whole new side of his character being discovered. He is as surprised as everyone else by what he discovers.