19. Jelly Legs
Sarah was meant to write her mother a letter that day, yet it was really wierd to do so as Sarah thought that she might leave out on purpose. What would her mother say about how hard Sarah tried to learn an offensive spell - Jelly Legs. But then again, how could one duel using only potego? That would be a pointless duel, and they could only win when the other person runs out of energy. Sarah guessed learning a bad spell was okay. It was not like she was going to use it on something.. well maybe she would in a duel, yet Sarah did not like dueling as she felt bad to hurt someone. Yet life was life so someday Sarah might have to use (gasp) Jelly Legs yet she hoped she would never had too.
After all the thinking Sarah realized that she wanted to be an auror, so she might have to kill people or something...