In1961, when their usual arrangements for summer camping fall through, Crusader class leader, Geoffrey Johnson, yields to pressure from his most promising senior boy, Tim Jones, to organise a trip to Anglesey. The location must be good because Tim Jones's aunt and the farmer lending the field worship in the same chapel. Ensnared in their Christian marriage, his wife, Jenny, has her reservations. Shouldn't they have inspected the site first? But once the camp commences, the focus of her anxiety switches to the evangelisation. Isn't it brainwashing the suggestible? She is all too aware that the other Crusader leader, confirmed bachelor Jack Hopkins, cuts a ridiculous figure in his moth-eaten maroon sweater and ancient shorts, even if he is quite harmless. But Tim is the one to lead doubting Thomases, if not to the Promised Land, at least to Mount Snowdon and Caernarfon Castle across the Menai Straits. Whilst hinting at Anglesey's poverty-stricken past, this novel explores the psychology of born-again Christianity, examining its doctrinal basis. Can the undertow be ignored?