Wally had been confused by Keith's request. She did not understand what business they could possibly have at The Three Broomsticks. All she knew was he wanted her to go, and as a good business partner, she had better make it her business to go. She had been on her way out when that pesky prefect found her. He had tried to befriend her this year, presumably to make her spy against Keith, and now on her way out, he confronted her.
"Where are you going, Wilhelmina?"
"I don't answer to that name."
"Where are you going?"
"You don't have any real power, you know."
She tried to duck past him, but he grabbed her arm and began ranting to her, asking her if she really thought dabbling in whatever it was she was dabbling in was a good use of her time and talents, asking if she wanted to end up like 'that ruffian' Keith. Wally grimaced and stomped on the prefect's toe. He released her. She bellowed "F*ck da police!" and took off running.
~ ~ ~
Fifteen minutes late, but that couldn't be helped. She did a quick scan of the little pub and walked over to who was, undoubtedly, the shortest person there. She sat across from him, tightening her braids and said, "Had a run in. Sorry." A waitress seemed to materialize and she brushed the pocket that held the galleons she had nicked from her sister's trunk. "A Sprite and a grilled cheese with fries."