 Love and devotion from little sister Clara, two, who has been by her side through gruelling months of treatment, gave her the purpose to survive. Tilly, now four, is in remission, and Clara is with her every step of the way. Her mother Hannah, 28, who lives with partner Oliver, 30, in Castleford, West Yorks, ... Brave young Tilly survives cancer battle with the help of her... 