midnight
I will have the detective 's heart 's blood for this , '' cried the woman , with passionate vehemence . `` Of course , '' agreed the Professor . `` But of what crime was the young man accused ? Not the one on the midnight express , I hope ? '' The tall visitor bent eagerly forward then , and penetrated the woman with a keen gaze . `` No , no , '' was the quick reply . `` I know that Martin had no hand in that . ''