The theft of a valuable necklace; the drug trafficking of an establishment doctor; the disappearance of his wife; the salacious crimes of a Booker prize winner, these were really issues for the police but the surprisingly simple yet eminently viable plot to alleviate one of the planet's more pressing problems was a moral one. For Gaia the plot's success would be her salvation but for me the dilemma was a veritable box of frogs. Should I tell the authorities...