A former Frome Community College student's debut novel has leapt into the top ten of the iTunes book chart.
Kerry Wilkinson, 30, was a pupil at the college from 1994 until 1999 and also attended Oakfield Middle School and St John's Primary School.
His debut book, Locked In, was released two weeks ago and over last weekend, was outselling authors such as Stephenie Meyer, who created the Twilight series, JRR Tolkien and Roald Dahl.
Mr Wilkinson said: "One of my friends sent me a message on Twitter asking if I realised I was number 46 in the charts.
"I hadn't noticed it at all but then logged on to iTunes and saw it there.
"I put it up for sale a couple of weeks ago but it can only be word of mouth which has made people buy it.
"The early reviews have been good, which is very flattering."
The novel tells the story of a female detective in Manchester struggling with a seemingly impossible case and is selling in the top ten books in Apple's Crime and Thriller category.
Mr Wilkinson lives in Preston, Lancashire, but still has strong links to the area as his parents live in Frome, as do two of his brothers and two of his sisters.
The writer, who is one of the youngest magistrates in the north of England, said: "I've always been a big reader and, when I turned 30 last year, I just decided I was finally going to get around to writing the book I always wanted to.
"I know a fair few police officers and the majority of them are very funny people, even if the laughs are sometimes dark.
"I wanted to write something that felt real like that to me, with people going about a serious job but actually having a normal life too.
"It is a detective story in the basic sense but I hope there's a lot of humour in there too."
Mr Wilkinson lived in the town until 2003, playing cricket for Frome and writing sports reports for the Somerset Standard.
A follow-up novel, entitled Vigilante, should be out by the end of the year.
Locked In will be available in hard back in September.