The Mamur Zapt, Head of Cairo's Secret Police under British Rule, did not concern himself with routine police matters. His are the intrigues, the shadowy and sinister events aimed at creating political instability--an event such as the discovery of the body of a dog in a Coptic tomb. This supreme Moslem insult could touch off an explosion among the Christian community. Equally volatile is the visit from an English Member of Parliament intent upon...