Instantly, the circle of fire began to die away, and soon vanished completely leaving the way clear for them to proceed.
"That was funny!" laughed Button-Bright.
"Yes," agreed the Wizard, "it seems odd that a little match could destroy such a great circle of fire, but when Glinda invented this trick, she believed no one would ever think of a match being a remedy for fire.

I suppose even Ugu doesn't know how we managed to quench the flames of his barrier, for only Glinda and I know the secret.

Glinda's Book of Magic which Ugu stole told how to make the flames, but not how to put them out." They now formed in marching order and proceeded to advance up the slope of the hill, but had not gone far when before them rose a wall of steel, the surface of which was thickly covered with sharp, gleaming points resembling daggers.

The wall completely surrounded the wicker castle, and its sharp points prevented anyone from climbing it.

Even the Patchwork Girl might be ripped to pieces if she dared attempt it.
"Ah!" exclaimed the Wizard cheerfully, "Ugu is now using one of my own tricks against me.