BACK in 2011, Roddy Doyle had a brilliant idea that he turned into a short story for children called 'Brilliant'.
It was about a city called Dublin that was feeling very depressed and about two children who set off to rescue their uncle, an unemployed painter, from the 'black dog' of depression.
The story was written originally for the St Patrick's Festival in 2011 when Dublin was the UNESCO City of Literature.
And yesterday Macmillan Children's Books in the UK announced that it had signed a deal with Doyle to turn the story into a new children's novel.
Macmillan is one of the biggest publishers of children's books in the world and the deal covers Irish, UK and Commonwealth rights and translation rights worldwide.
Macmillan will publish a hardback and ebook in the UK market and a trade paperback in the Irish market in May 2014, with a paperback to follow in both markets five months later.
The title came from the way Dublin people call everything brilliant. Even when things go wrong they say: "Well that's just brilliant!"