"And with an element of fresh mystery added to complicate it more than ever, dear chap," he declared, rather excitedly. "For, as the father vanished eleven months ago, so yesterday the son, too, disappeared. In the same manner--from the same point--in the selfsame building and in the same inexplicable and almost supernatural way! Only that in this instance the mystery is even more incomprehensible, more like 'magic' than ever. For the boy is known to have been shown by a porter into a room almost entirely surrounded by glass--a room whose interior was clearly visible to two persons who were looking into it at the time--and then and there to have completely vanished without anybody knowing when, where, or how." CHAPTER XXXIV "What's that?" rapped out Cleek, sitting up sharply. His interest had been trapped, just as Mr. Narkom knew that it would. "Vanished from a glass-room into which people were looking at the time? And yet nobody saw the manner of his going, do you say?" "That's it precisely. But the most astonishing part of the business is the fact that, whereas the porter can bring at least three witnesses to prove that he showed the boy into that glass-room, and at least one to testify that he heard him speak to the occupant of it, the two watchers who were looking into the place at the time are willing to swear on oath that he not only did not enter the place, but that the room was absolutely vacant at the period, and remained so for at least an hour afterward. If that isn't a mystery that will want a bit of doing to solve, dear chap, then you may call me a Dutchman." "Hum-m-m!" said Cleek reflectively. "How, then, am I to regard the people who give this cross testimony--as lunatics or liars?"