The package was not there.
He had been prepared for this, yet the disappointment was bitter. Still there was consolation in the discovery which he had made, and his excitement and curiosity were yet strong. He naturally turned his attention to that stone which formed so wonderful a door-way, and which had so long baffled him.
He saw that at the end, near the crevice, the stone was about eighteen inches thick, but that it was all cut away toward the other end, till it ended in a slab of only two inches in thickness. One end of the stone was thus a vast block, while the other was a comparatively thin slab. He now understood the whole construction.
At the thick end the door was set with stone pivots, into sockets above and below, by means of which it was easily moved. The reason why he could not move it at first was because he was exerting his strength near the hinge, or pivots, where, of course, it was thrown away; but as soon as he had touched the farther edge, it yielded to a slight pressure. Here, inside, there was a stone handle by which it was easily opened, while, outside, he thought that it was closed by swinging it as one went out, so that it went by its own weight into its place.
After all, there was nothing very strange in this. Harry had read about such stone doors. In the accounts of the Moabite cities, mention is made of something of the sort; and as those have lasted for three thousand years, this one might well lust for several hundred.
But the package!
There were no traces of it. At the hinge end of the slab there was a wedge-shaped stone, by inserting which here the door could be secured against opening from without. Into this wedge-shaped crevice he had thrust the package. He saw also that in pushing it far in he had only secured its discovery, for he must have pushed it so far that the first one who passed had found it.
Now who could that have been?
Whoever it was, the package was gone. No doubt it was one of the Carlists, who had taken it to their leader. It was gone beyond all possibility of recovery.
Harry had been so taken up with his examination of these things that he had forgotten all about the necessity of caution. He stood there thus, in thought, the torch brightly burning, when suddenly he was roused by some one rushing up the steps. He darted back into the passage-way, and banged the stone door after him.