Quotation from: The Land That Time Forgot

Written by: Edgar Rice Burroughs

After that I kept a guard pacing the length of the narrow craft.
We worked upon the engine all that day and night and half the
following day. Most of the time we drifted idly upon the
surface, but toward noon we sighted smoke due west, and having
found that only enemies inhabited the world for us, I ordered
that the other engine be started so that we could move out of the
path of the oncoming steamer. The moment the engine started to
turn, however, there was a grinding sound of tortured steel, and
when it had been stopped, we found that some one had placed a
cold-chisel in one of the gears.