twelve o'clock
She replied : `` I took a motor cab . '' `` In the street ? '' `` On the Place de l'Opéra . '' `` At twelve o'clock , therefore ? '' `` No , at half-past eleven : I left before the opera was over . '' `` You were in a hurry to get to your friend 's ? '' `` Yes ... or rather -- '' She stopped ; her cheeks were scarlet ; her lips and chin trembled ; and she asked : `` Why do you ask me all these questions ? ''