Maniac Magee Chapter 19 "Cobble's Knot"

They brought out the Knot and hung it from the flagpole. They brought out the official square wooden table for the challenger to stand on, and from the moment Maniac climbed up, you could tell the Knot was in big trouble.

To the ordinary person, Cobble's Knot was about as friendly as a nest of yellow jackets. Besides the tangle itself, there was the weathering of that first year, when the Knot hung outside and became hard as a rock. You could barely make out the individual strands. It was grimy, moldy, crusted over. Here and there a loop stuck out, maybe big enough to stick your pinky finger through, pitiful testimony to the challengers who had tried and failed.