The Centaur and the Stone is an essential relationship quest in Hogwarts Legacy that continues Poppy Sweeting’s story arc. Players must venture into the Moonstone Garden to retrieve a special stone needed to protect rare magical beasts. Completing this quest requires a mix of spellcasting, puzzle-solving, and overcoming dangerous subterranean creatures.

Beginning the Quest and Finding the Cave

To start the mission, meet Poppy near Irondale, south of Hogwarts, where she explains the importance of finding the Scholar’s Moonstone. Follow the quest marker into the nearby Moonstone Garden cave entrance to begin the dungeon crawl. Before entering, make sure your spell wheel includes Depulso, Accio, and Lumos for the environment puzzles ahead.

Inside the cave, you will immediately notice obstacles made of heavy stone barricades and overgrown roots. Use Incendio or Confringo to clear away thick vines blocking major paths. Stay alert as you navigate the corridors, as Dugbogs and other hostile creatures frequently nest in these damp caverns.

Solving the Moth Puzzles

As you descend deeper, you will encounter large mechanical doors that rely on magical moths to open. Cast Lumos near flying moths to attract them to your wand, then guide them carefully to the spinners or door slots. Use Depulso on the moth spinners to activate mechanisms that raise platforms or retract heavy gates.

One room features multiple moth stands that must be powered simultaneously to reach the upper level. Take your time positioning each moth and rotating the handles to ensure gates stay open long enough for passage. Double-check hidden alcoves along the way to gather extra gear and potion ingredients.

Retrieving the Scholar's Moonstone

After navigating through the cavernous puzzle chambers, you will arrive at a central water area surrounding a large tree. The Scholar’s Moonstone rests at the center of this sacred grove. Dive into the water and swim toward the central island to pick up the item needed to help the centaurs.

Once you acquire the stone, speak with Poppy to discuss your next moves regarding the Snidgets. You can then use the nearby shortcut water tunnel to exit the cave quickly without backtracking through the entire dungeon.

Placing the Moonstone at the Henge

Follow Poppy to the nearby centaur henge located on a cliff overlooking the surrounding valley. Place the Scholar’s Moonstone into the central monument to trigger a magical cutscene featuring dancing Mooncalfs. Watching the creature dance reveals key lore regarding the location of the endangered Snidget sanctuary.

After the cutscene finishes, retrieve the stone back from the monument as instructed by Poppy. Speak with her one last time to complete the quest and unlock the final chapter in her storyline.