Rex’s voice was trembling with excitement.
“We can put the lights on after we get into the corridor,” he said.
He found his way across the room by the light of the lamp, unlocked the door and led the way into the passage.
“Shut that door, Tab,” he hissed and when Tab had obeyed he turned on all the lights.
Near the end of the corridor Tab saw a great heap of bricks and a board covered with mortar; the work of bricking up the vault had begun and the first course stretched across the open doorway of the vault.
Rex stepped over the brick-work and illuminated the empty interior.
“There!” said Rex triumphantly and pointed to the table.
“What is it?” asked Tab in amazement.
“Hold both sides of the table and pull.”
“But the table is fixed on to the floor; we noticed that before,” said Tab.