twelve o’clock
cried she with a sweet smile . Then she said suddenly , and in a low quick voice : `` You say I must trust no one here but you . Now , then , I will give you a proof of my confidence . Await me in the green summer-house at twelve o'clock to-night . You must be my attendant on a dangerous excursion . Have you courage , John ? '' `` Courage to lay down my life for you , queen ! ''