"I had not thought of that.

If these rascals have set fire to the place we shall be roasted alive here." A slight wreath of smoke was seen curling up through the crevice of the tightly-fitting stone.
"We will leap out, and die sword in hand," the prince said; and seizing the ring, he and Harry pulled at it.

Ere they raised the stone an inch, a volume of dense smoke poured up, and they at once dropped it into its place again, feeling that their retreat was cut off.

The prince put his sword in its scabbard.
"We must die, my lad," he said.

"A strange death, too, to be roasted in a trap.