MTL - HP Dear Miss Freak - Chapter 56 Fifty-one, drag racing and rescue

... convinced.

"He was warned about using magic in the presence of Muggles," said Mr. Arthur, shaking his head regretfully.

"None of my letters to him! I invited him twelve times!" Ron slammed his fist on the table, "It must be his nasty uncle Aunt did it! I really want to teach them a lesson!"

"You also have to remember." Arthur looked at the children in front of him and warned, "For whatever reason, you can't use spells in front of Muggles, let alone play tricks. them."