‘Quite an ordinary state of things, in fact,’ said Wood with a smile; he had just returned with the book in his hand. And even as he spoke there was a stir in the clockwork of the great dark clock behind him and successive strokes thrilled through the room up to the number of seven. With the last stroke there came a crash from the floor above that shook the house like a thunderbolt; and Father Brown was already two steps up the winding staircase before the sound had ceased. ‘My God!’ cried Payne involuntarily; ‘he is alone up there.’ ‘Yes,’ said Father Brown without turning, as he vanished up the stairway. ‘We shall find him alone.’ When the rest recovered from their first paralysis and ran helter-skelter up the stone steps and found their way to the new studio, it was true in that sens