Elden Ring is full of secrets, some obvious and some so well hidden that most players are better off seeking out answers online than trying to figure out the puzzles themselves. One of From Software's favorite tricks is to put seemingly innocuous items in their games that turn out to be a key item in later side quests and puzzles. It's a trick that works over and over again as there are usually just enough clues in the game world for players to figure out the key and feel smart doing so.