Arc 16Helga’s Chosen Successor
Su Er learned of Harry’s connection to Voldemort, watched Fake Moody’s lessons, and passed Helga Hufflepuff’s trial, emerging with enhanced magical abilities and a long absence behind him. He reunited with Hermione as Beauxbatons and Durmstrang arrived at Hogwarts, where the Triwizard Tournament was about to begin.
- Dumbledore told Su Er that Harry was a Horcrux and showed him memories of Voldemort killing the Potters and the soul fragment entering Harry.
- Su Er used Harry’s Marauder’s Map to confirm that Alastor Moody and Barty Crouch were both in Moody’s office, then agreed to watch Fake Moody and help Harry learn about Occlumency.
- Fake Moody taught the students about the Unforgivable Curses, while Su Er recorded his demonstrations and later joined Hermione’s efforts to secure rights for house-elves.
- Su Er visited the centaurs and passed through a hidden entrance to meet Helga Hufflepuff, who recognized him as an outsider she had foreseen a thousand years earlier.
- Helga gave Su Er glowing seeds and left him asleep in a sealed place, and he woke weeks later with improved magical control and the ability to perform wandless, nonverbal magic.
- Su Er reunited with Hermione, explained his disappearance, and returned to Hogwarts, where Kleis declared him Helga’s chosen successor.
- Su Er arranged to help Aberforth attempt to summon Ariana with the Patronus Charm and made Kleis watch for anyone entering the Triwizard Cup.
- Beauxbatons and Durmstrang arrived at Hogwarts, and Dumbledore announced the tournament’s start as Fleur Delacour and tournament officials joined the feast.