"If I may say so, your own conception of Space is by no means as straightforward as it seems at first," Leibniz said, very much in the style of one who was firing the opening salvo of another long argument. But before this could get going, the door of the room opened, and Johann von Hacklheber could be seen standing there, holding, in a very significant way, a Letter. Behind him Eliza was pacing back and forth with a fist balled up in front of her lips.