Eight Days to Live: Eve Duncan #10 by Iris Johansen

The 10th book in the Eve Duncan series. The story follows Jane MacGuire, Eve Duncan's adopted daughter, who becomes the target of a secretive cult. The cult believes that Jane's painting titled "Guilt" is blasphemous and that she must die.
Jane has only eight days to live, and the cult plans to use her as a sacrifice to gain ultimate power. With Eve's help, Jane must escape before the cult can carry out their plan. The novel is filled with suspense, danger, and emotional depth as Jane and Eve race against time to save Jane's life.