“Here was the secret of her blanched face, her shaken nerves, her peals of hysterical laughter on the next morning. But what had been in the box? What had she done with that? Of course, it must have been the old metal and pebbles which my client had dragged from the mere. She had thrown them in there at the first opportunity to remove the last trace of her crime.

“For twenty minutes I had sat motionless, thinking the matter out. Musgrave still stood with a very pale face, swinging his lantern and peering down into the hole.

“ ‘These are coins of Charles the First,’ said he, holding out the few which had been in the box; ‘you see we were right in fixing our date for the Ritual.’

“ ‘We may find something else of Charles the First,’ I cried, as the probable meaning of the first two questions of the Ritual broke suddenly upon me. ‘Let me see the contents of the bag which you fished from the mere.’