He examined the tablet, which rested on several rocks set in the form of a square, one side at the very opening just mentioned. The flat stone was a heavy affair, weighing all of six or seven hundred pounds.
"Ye can't budge thet by hand," said old Jacob, who was almost as excited as the rest. "It will take a block and fall, or a long lever, to do it."
"And we have neither!" groaned the Englishman.
They stared at each other blankly. What was to be done?
"Perhaps we can pull it away from the back," said Dick. "That is, if there is any way, of fastening the rope."
As he spoke he reached across the tablet from the front and felt in the back.
"By ginger! the back's hollow!" he burst out.
"Hollow?" came from several of the others.
"Yes, hollow. Here, give me one of the torches and I'll take a look for the chest."
The light was speedily thrust forward, and while the others held him by the legs to keep from sliding down into the crack beyond, Diok made an inspection.
"The hole under the tablet is empty!"
A groan went up.
"Empty? Impossible!" said Robert Menden, and his face grew as white as a sheet.
