An e-book being offered on the Kindle store for 20p has broken the top-three monopoly of the Fifty Shades of Grey trilogy after weeks of dominance.
Alice Peterson's Monday to Friday Man (Quercus) has risen to number three in the paid-for Kindle chart, as E L James' Fifty Shades of Grey (Arrow) drops to the number four slot, after spending 142 days in the top hundred.
The top two spots are still taken by the Fifty Shades follow-ups, Fifty Shades Freed and Fifty Shades Darker.
Monday to Friday Man was first released in July 2011, and has spent 75 days in the top hundred Kindle bestsellers.
Its success has grown while it has been offered for 20p, as Amazon matches the price of books offered in a promotion on the Sony Reader Store.
Other books riding high in the 20p offer include Alan Hollinghurst's The Stranger's Child (Picador), and Peter James's Dead Man's Grip (Macmillan).