“Stand clear!” cried Burton.
Again he threw his weight upon the bar—and again.
“Drive it further in!” said Monte Irvin; and snatching up the heavy hammer, he rained blows upon the steel butt. “Now try.”
Burton exerted himself to the utmost.
“Take hold up here, someone!” he panted. “Two of us can pull.”
Gray leapt forward, and the pair of them bent to the task.
There came a dull report of parting mechanism, more sounds of splintering wood... and the door rolled open!
A moment of tense silence, then:
“Is anyone inside there?” cried the Inspector loudly.
Not a sound came from the dark interior.