I don't like writing at home much," admits Shearman. "Home is a place for sleeping and eating and watching afternoon game shows on TV. There are too many distractions. So, years ago, I decided I'd only write first drafts in art galleries."And the best of them all is the National Gallery, in London, a pigeon's throw from Nelson's Column. I can walk around there with my notebook, thinking up stories - and if I get bored, there are lots of expensive pictures to look at. Perfect."A lot of those paintings, however, have angels in them. They're all over the place, wings raised, halos gleaming - perching on clouds, blowing trumpets, hovering around the Virgin Mary as if they're her strange naked childlike bodyguards. And I began to notice. That, whenever the writing is going well, the angels seemed happy, and would smile at me. And whenever the words weren't coming out right, when I felt sluggish, when I thought I'd rather take off and get myself a beer, they'd start to glare."I wrote this story in the National Gallery. Accompanied by a lot of glaring angels. Enjoy.