What Was Lost Was Lost" was the winner in the first novel category of the Costa Book Awards. O'Flynn received a £5,000 prize. It was short-listed for the overall Costa Book of the Year Award. The Costa Book Awards' judging panel, chaired by Joanna Trollope, praised the novel for "blending humour and pathos in a cleverly constructed and absorbing mystery." They described the novel as inventive, compelling, and poignant. "What Was Lost" was long-listed for the 2007 Man Booker Prize and the Orange Prize for Fiction. It was short-listed for the Guardian First Book Award. It won the Jelf Group First Novel Award
European Book Prize received 20,000 euros. The inaugural European Book Prize was awarded to Belgium's prime minister Guy Verhofstadt for "United States of Europe". The ceremony was held at the European Parliament in Brussels on 5 December 2007. Swedish crime fiction writer Henning Mankell handed the prize to the winner. While giving the prize, Mankell said that the jury was sensitive to the political courage showed by the current prime minister of Belgium. He added that in a Europe which has a lot of self-doubt, which has a lot of questions about its own future, Guy Verhofstadt offered a clear proposal for the