Douglas Adams's increasingly inaccurately named Hitchhiker's Guide to the Galaxy trilogy is to be extended to six titles, after Adams's widow Jane Belson sanctioned a project which will see children's author Eoin Colfer taking up the story.

And Another Thing… by Colfer, whose involvement with the project was personally requested by Belson, will be published next October by Penguin. No information has yet emerged about the plot of the novel but Hitchhiker fans will be hoping for a resurrection of much-loved characters Arthur Dent, Trillian and Ford Prefect, who were all apparently blown to smithereens at the end of the fifth novel, Mostly Harmless.

Adams himself had plans for a sixth Hitchhiker book, saying in an interview: 'People have said, quite rightly, that Mostly Harmless is a very bleak book. And it was a bleak book. I would love to finish Hitchhiker on a slightly more upbeat note, so five seems to be a wrong kind of number, six is a better kind of number.'

Source: www.guardian.co.uk/books/2008/sep/17/douglasadams