But was there anything round the universe to show where it stopped before the nothing place began? It could not be a wall; but there could be a thin thin line there all round everything. What's `out,' as I told you, with Miles is that if he thinks I'm afraid to--and has ideas of what he gains by that-- he shall see he's mistaken. That was the meaning of TOWER OF IVORY. O, give it up, old chap! Sleep it off! APRIL 16.