By Philippa Tracy
Dominic Salt is struggling to deal with the death of his wife, Claire, nine years earlier. She died when her youngest child, Orly, was born. Since then, Dominic and his three children, Orly, Raff and Fen, have been living on a remote, fictional island, called Shearwater, about 1,500km from Antartica. They are there to manage a huge seed vault, of over three million seed varieties. But rising
