A girl keeps a diary while she learns more about her grandmother's time in a WW2 prison camp, and her best friend becomes increasingly ill with a brain tumour. Harry Christmas and Angie Moon are best friends and almost-twins. Ever since they were born two days apart they've been partners in cloud-spotting, sweet-eating and treehouse-building. But when Harry is taken to hospital for headaches that won't go away, he needs Angie more than ever. Because when things fall apart, only a best friend can stitch them back together. Told through Angie's lively diary, this is a bittersweet story about friendship and growing up.