Since 2009, Deadly Knitshade and her covert group of dyed-in-the-wool knitting ninjas have been transforming the grey streets of London in a riot of woolly colour - one stitch at a time. No corner is safe from their yarnstorms - sublime crafty marriages of street art and knitting - which have baffled policemen, delighted tourists, and brought a touch of much-needed homespun colour into the everyday lives of Londoners. Knit the City"s handmade mischief transformed a forlorn ballerina outside the Royal Opera House, cosied a Parliament Square phone box and conjured a 13-ft spider"s web, replete with doomed insects and fairies, in a tunnel beneath Waterloo station. Their daring arty feats will ensure that you never see knitting - or London - the same way again.