28/34 He was fortunate enough to be able to hail a passing taxicab and was driven to my house in Hampstead. He has spent the intervening period, until three o'clock this afternoon, in a small laboratory attached to the premises." "A compulsory stay, I presume ?" the Bishop ventured. "He has been most of the time under the influence of some new form of anaesthetic gas with which I have been experimenting. To-night, however, I must have made a mistake in my calculations. Instead of remaining in a state of coma until midnight, he recovered during my absence and appears to have walked out of the place." "You have no idea where he is at the present moment, then ?" Catherine asked. |