Christine Purkis 
Dark Beneath The Moon [EPUB ebook] 

Rowan’s family live deep in the country – in a caravan. They are travellers and life is chaotic and very, very happy; until, that is, the day Rowan meets a strange old woman who carries the secrets of the past under her shawl. . . It is a past in which a child, Liza, is locked in a place of fear and danger – and only Rowan can unlock the door from past to present and set Liza free.