Peter Urpeth yesterday began posting his novel, MacKenzie's Issue, on the website at a sedate 140 characters a time. The first posting read: "He was my father, that's all, and I was elsewhere at the time of his passing."

Some 21 minutes later the second extract appeared: "I am uncertain of the exact day and date on which he died. On reflection, I am not too sure even of the year. But I know that it was summer."

The novel tells the story of the strange life of the last son of an obscure branch of the Clan MacKenzie and is set on Scotland's north-west coast and in the Outer Hebrides.

Mr Urpeth is the writing development co-ordinator for Hi-arts, the Highlands and Islands arts development agent. His first novel, Far Inland, was published in traditional book form by Birlinn Polygon in April 2006.

However, if he sticks to his guns and Tweets one entry a day, given that the average book is 80,000 words long and there are roughly 16 words per line, it could take him close to 14 years to complete the novel. Whether people are still reading by then is another matter. Explaining his decision to tweet his latest book, Mr Urpeth said: "As a novelist, I am intrigued by the opportunities, challenges and limitations the digital world generates, and I want to explore and experience new digital media from the viewpoint of a writer of long fiction.

"My new novel will be written tweet by tweet with an undertaking by me to add at least one new tweet section every day until the end is reached and the archive of tweets will remain accessible so that new readers can catch-up at any time."

He continued: "Normally, as a novelist writing and publishing in the traditional manner, the book would be finished and have gone through countless revisions before being exposed to a readership. This one is published as it is written.

"It is new at the point of every tweet, and I also aim to reflect on and respond to feedback from readers. One immediate challenge is to make sentences that have economy, and which work within the limitations of the 140-character maximum."

He said: "This is not a totally new idea – tweet novels have been posted before, and some have been bought-up and subsequently published in traditional form. So this is also an exploration of digital marketing for writers, and maybe a new way of reading or experiencing fiction, too."


A SOCIAL PHENOMENON

THE most recent of the social networking sites, Twitter is distinct in that it restricts its users to posting messages up to 140 characters long.

Users can send and receive messages – or tweets – by computer or via a phone.

These tweets can be viewed by the website's "followers", who in turn can comment on the message.

In the three years since its inception, the site has become one of the most popular websites in the world. In addition to its social function, Twitter has been used by activists to organise political protests.