The Book of Dave is a misogynistic, racist, homophobic rant, written by a demented London cabbie, buried in November 2001 in the Hampstead garden of his hated ex-wife and addressed to the son he idealizes rather then fathers. Several centuries pass and, as sea levels rise, the only land left in Central London becomes the isolated isle of Ham. There, the Six Families scratch a meagre living from the land. Their lives, however, are full of religion. For Daveˇ¦s book has been disinterred and transformed into Holy Scripture. The peasants know his text by heart. The doctrines of Breakup and Changeover are rigid and absolute. Only one islander, Symun, remains incredulous. Rather than finding certainty in the Book and its Knowledge, he finds only questions. Desperate to discover answers, Symun embarks on an epic journey into the Forbidden Zone, and eventually to the terrifying heart of New LondonˇK .