about seven o'clock
She stood there in ignorance that he had already seen and closely questioned Barker in London , and that the man had made an admission , an amazing statement -- namely , that the subtle Eastern perfume upon Enid Orlebar , when she arrived so hurriedly and excitedly at Half Moon Street , was the same which had greeted his nostrils when he entered his master 's chambers on his return from that errand upon which he had been sent . Enid Orlebar had been in the captain 's rooms during his absence ! NOW Enid Orlebar 's story contained several discrepancies . She had declared that she arrived at Hill Street about seven o'clock on that fateful second of September . That might be true , but might she not have arrived after her secret visit to Half Moon Street ? In suppressing the fact that she had been there at all she had acted with considerable foresight . Naturally , her parents were not desirous of the fact being stated publicly that she had gone alone to a bachelor 's rooms , and they had , therefore , assisted her to preserve the secret -- known only to Barker and to the doctor .