Kitty hurried over to another ice block (just as soon as she got permission!) and stood back a few steps. Then she pointed her arms out in front of her and aimed her wand at the top of the ice block. Her intention was to melt the top off, but not completely off so hopefully the new top would be jagged and uneven. That would represent the towers of the White Witch's castle.

"Lustro Circulus!"

Some of the fire shot right over the ice block and hit another block behind it. Thankfully that other block hadn't belonged to anyone (Kitty was smart enough to know not to practice shooting fire in the direction of another person), and the fire burned harmlessly through it.

The remaining fire hit the top of her ice, burning the tops nearly as good as she had intended. "Wicked," she said, beaming at her display. It was lopsided and stuck out at random angles, but she was still proud of it.