Here's a re-write (a little after the fact, but any suggestions to make it better are welcome)
Four careful climbers and diminutive guide
Scaling one cliff, “Pick me!” it cried.
They maneuver in step, each level to plan,
And head to the top, brave to the man.
Bowing and bending under weight of their mission,
They stick to the route, one artist’s vision.
A taught rope tightens, bound to a neck;
A madman is tasked to keep it in check.
And a body abused by the strap was then hung . . .
A tragic event to which ballads are sung.