Wonder upon wonders! My brain reeled as we stepped out of the door in the wall into a great Gothic room with groined roof of stone, an oriel window at one end, and thousands upon thousands of books in the embayed shelves of ancient oak. It was exactly like the library of some great college or castle; one expected to see learned men in gowns and hoods moving slowly from shelf to shelf, or writing at this or that table.

"But, but," I stammered, "this might have been here for seven hundred years!" and indeed there was all the deep scholastic charm and dignity of one of the great libraries of the past.

For answer he turned to me, and I saw that his thin hand clutched at his heart.

"It's all illusion," he whispered, "all cunning and wonderful illusion. The walls of this place are not of ancient stone. They are plates of toughened steel. The old oak was made yesterday at great expense. 'Tis all a picture in a dream."

I saw that he was powerfully affected for a moment, but for just that moment I did not understand why.

"But the books!" I cried, looking round me in amazement—"surely the books—?"

"Ah, yes," he sighed, "they are the collection of Mr. Gideon Morse, which is second to very few in the world. They were all brought over from Rio nearly two years ago. We cannot compete with the British Museum, or some of the great American collectors in certain ways, but there are treasures here—"

We had by now walked half-way up the great hall. He stopped, went to part of the wall covered with books, withdrew one, turned a little handle which its absence revealed, and a whole section of the shelves swung outwards.

"In here, please," said Pu-Yi, "this is a little room where I sometimes do secretarial work. At any rate it is hidden, and you will be quite safe here while I go to the Señorita and tell her that you await her."

The door clicked. I sat down on a low couch and waited.