Even though I might get out, I should not find it very easy to get away.

And what were my chances of getting out?
As yet they seemed exceedingly remote.

The only possible exits were the door and the window.

The door was both locked and bolted, and either to open or make an opening in it I should want a brace and bit and a saw, and several hours freedom from intrusion.

It would be easier to cut the bars--if I possessed a file or a suitable saw.