“Oh, not at all. I think we can pull him round if we persevere, but he must not be allowed to sink back into a state of coma. We must keep him on the move until the effects of the drug have really passed off. If you will put him into his dressing-gown we will walk him up and down the room for a while.”

“But is that safe?” Mr. Weiss asked anxiously.

“Quite safe,” I answered. “I will watch his pulse carefully. The danger is in the possibility, or rather certainty, of a relapse if he is not kept moving.”