A Dog Called Homeless

Cally Fisher saw her mum bright and real and alive. But no one believes her, so Cally's stopped talking. She hasn't spoken for thirty-one days. A mysterious wolfhound always seems to be there when her mum appears and now he's started following her everywhere. But how can Cally convince anyone that Mum is still with them, or persuade Dad that the huge silver-grey dog is their last link with her?