Man Booker-nominated Room (Picador) is the hot favourite to win the Orange Prize for Fiction, according to odds just released by bookmakers William Hill.
The winner of the 16th prize will be revealed next Wednesday (8th June) at the Southbank Centre in London.
Author Emma Donoghue is 2/1 to win the prize, with Aminatta Forna's second novel, The Memory of Love (Bloomsbury) sitting at 3/1.
Both Emma Henderson, author of Grace Williams Says it Loud (Sceptre) and Nicole Krauss, for Great House (Viking) are 5/1 to clinch the prize.
Téa Obrecht's The Tiger's Wife (Phoenix) and Kathleen Winter's Annabel (Jonathan Cape) are the outsiders at 6/1.
The prize is awarded to to the best novel of the year written in English by a woman. The winner is presented with a cheque for £30,000 and a limited edition statue known as the Bessie.