Not the End of the World by Geraldine McCaughrean
Everyone knows the story of the Flood, the men God chose to survive, the animals that went in two-by-two. But what about the others that sailed on the Ark, the women and the children? This adventure story asks what it was really like when the heavens opened and the world drowned - and what might have happened in the days that followed. With a frighteningly zealous and single-minded Noah; Japheth and his young wife, Zillah concerned for the welfare of the animals; the stowaway boy and baby found by Noah's daughter, Timna; and the animals themselves, continuing to act as animals do, whatever their surroundings, this is an extremely compelling and at times very frightening story, beautifully written as ever by Geraldine McCaughrean.