1930 Durham Fell tops, Castle Bank CollieryKath walked for so long that she wanted to lie down in the snow and sleep but she thought of her sister and knew she must go on. Soon the snow was so deep that she couldn't move...When their mother dies and their father, in his grief, burns down their wagon and runs away, Kath and Ella - gypsy sisters - suddenly become orphans. With no one to turn to for help, they face hardship and hunger at every turn. Will their special sisters' bond be strong enough to see them to safety?