Siobhan Dowd 
Ransom of Dond [EPUB ebook] 

Darra is an omen of unluck: a thirteenth child. To appease the dark god, Dond, and bring good fortune to her small island community, Darra must be sacrificed at the age of thirteen – by drowning. On the eve of her final birthday, Darra begins to dream of the twin brother she has watched from afar but never met, and dares to hope that she might escape her fate . . . The scouring wind and remorseless waves which beat against Darra’s island world are matched in Pam Smy’s powerful, wild and emotive illustrations. The Ransom of Dond is our final story from Siobhan, and a book to be treasured.