About midnight
and `` Oh ! these men ? '' At last , when they had locked the little garden-door , Mademoiselle Planus went up to her room , and Sigismond made himself as comfortable as possible in a small cabinet adjoining . About midnight the cashier was aroused by his sister calling him in a terrified whisper : `` Monsieur Planus , my brother ? '' `` What is it ? '' `` Did you hear ? '' `` No .