From the Publisher:
In a semi-fictionalized North London, a group of twenty-something slackers spend their nights walking the roofs of Maida Vale. On one of these walks they see a couple through an open window, a sighting with profound conseqences that reverberates through all their lives.
Barbara Vine: Grasshopper. Penguin, ISBN: 0140293027 (May, 2001), 544 p., £5.99