There is a wheel hanging to the ceiling; the trap must be under that." In a minute the trap was found, and raised.

The smoke rushed up in a volume, and the boys looked with dismay at the dense murk below.
"It's got to be done, Hugh.

Tie that bit of sacking, quick, over your nose and mouth, while I do the same.

Now lower yourself by your arms, and drop; it won't be above fifteen feet.

Hold your breath, and rush straight to the window.