Even a suspicious eye must have failed to detect what had been done; the three who looked in suspected nothing and saw nothing.

They went out, the key was turned again on the prisoners, and the footsteps of two of the men were heard descending the stairs.
"We have an hour, now!" Tignonville cried; and leaping, with flaming eyes, on the bed, he fell to hacking and jabbing and tearing at the laths amid a rain of dust and rubbish.

Fortunately the stuff, falling on the bed, made little noise; and in five minutes, working half-choked and in a frenzy of impatience, he had made a hole through which he could thrust his arms, a hole which extended almost from one joist to its neighbour.
By this time the air was thick with floating lime; the two could scarcely breathe, yet they dared not pause.

Mounting on La Tribe's shoulders--who took his stand on the bed--the young man thrust his head and arms through the hole, and, resting his elbows on the joists, dragged himself up, and with a final effort of strength landed nose and knees on the timbers, which formed his supports.

A moment to take breath, and press his torn and bleeding fingers to his lips; then, reaching down, he gave a hand to his companion and dragged him to the same place of vantage.
They found themselves in a long narrow cockloft, not more than six feet high at the highest, and insufferably hot.