Zara Valli was a Hufflepuff student at Hogwarts School of Witchcraft and Wizardry in the 1990s. On the first day of the 1996–1997 school year, she had to go to the library, in order to do research for a fifteen-inch essay she had to write for Charms. She agreed to give Harry Potter some Moondew in exchange for two Gobstones while there. Later in the year, she could be found in the Viaduct, where she traded Gobstones for potions.