three o'clock
he said , laughing . `` If I take our friend Perenna 's advice at all , I may as well take it thoroughly ! '' `` There is only two minutes left . '' `` Our friend Perenna spoke of three o'clock , not of two minutes to three . So -- '' He crossed the boulevard , accompanied by his secretary general , the chief detective , and Mazeroux , and clambered up the slope of the fortifications opposite the house . `` Perhaps we ought to stoop down , '' suggested Mazeroux . `` Let 's stoop , by all means , '' said the Prefect , still in a good humour .