Book excerpt: By the end of 1968 The Beatles were far too busy squabbling with each other, while The Stones had simply stopped making music; English Rock was coming to an end. All the Mad Men tells the story of six stars that travelled to edge of sanity in the years following the summer of love: Pete Townshend, Ray Davies, Peter Green, Syd Barrett, Nick Drake, and David Bowie. The book charts how they made some of the most seminal rock music ever recorded: Pink Moon; Ziggy Stardust; Quadrophenia; Dark Side of the Moon; Muswell Hillbillies - and how some of them could not make it back from the brink. The extraordinary story of how English Rock went mad and found itself