Author Raynor Winn's new book has been delayed because questions about her bestselling work The Salt Path have caused her and her husband "considerable distress", her publisher has said.Penguin Michael Joseph said the decision to postpone the publication of her fourth book,

"The Salt Path," a popular memoir, tells the story of how a woman and husband renewed themselves after financial ruin. But a recent investigation found fabrications in the story.

After an investigation cast into doubt the events of her best-selling memoir, Winn's publisher has been forced to delay her next book, 'On Winter Hill.'