The imagination doesn't crop annually like a reliable fruit tree. The writer has to gather whatever's there: sometimes too much, sometimes too little, sometimes nothing at all. And in the years of glut there is always a slatted wooden tray in some cool, dark attic, which the writer nervously visits from time to time; and yes, oh dear, while he's been hard at work downstairs, up in the attic there are puckering skins, warning spots, a sudden brown collapse and the sprouting of snowflakes. What can he do about it?