Sherlock was surprised by this. He thought that Martha and himself were both going to wait there for John. "John, are you sure?" He asked. "I don't want to cause you trouble. I wonder if it would better if I didn't? If you want me to, I will, though."

Martha thinned her eyes. "I cannot and will not keep him safe. If a Demon sees fit to attack him, I will not protect him. Know this, Japhrimel. If he stays here, I swear that he will come to no harm. If he goes to the Underworld, I can make no such promises."