A most famous use of the potion occurred when Fred and George Weasley and Lee Jordan attempted to use it to enter the Triwizard Tournament when they were still underage. Dumbledore had placed an Age Line around the Goblet of Fire to prevent anyone under the age of seventeen from approaching it. Hermione Granger warned Fred and George that the Age Line wouldn't be fooled by an Ageing Potion because Dumbledore himself made the age line and she believed that he would have thought of an Ageing Potion in advance. However, Fred, George, and Lee thought that an Ageing Potion would be enough to fool the Age Line magic, but they were wrong; Fred and George were ejected forcefully back over the line and both sprouted long white beards for their trouble. Lee, much to his relief, never attempted to cr