Hogwarts Legacy delivers an immersive open-world experience packed with secrets, collectibles, and intricate environmental puzzles hidden within the stone walls of the iconic school. Among the many engaging side activities available to students is the quest involving Garreth Weasley, who requires your assistance for a rather unusual potion ingredient. Navigating this adventure allows players to explore a hidden side of the castle while unlocking useful gameplay rewards.

Starting the Side Quest

To begin this specific mission, you must locate Garreth Weasley standing near the Great Hall area within the castle. He will explain his need for dried Billywig stings, a rare component located in a secret basement beneath the Honeydukes sweet shop. Accepting this request opens up a unique exploration path that shows how interconnected the school grounds are with the nearby village.

Finding the One-Eyed Witch Passage

The journey requires tracking down a specific statue of a one-eyed witch located near the Grand Staircase region. Interacting with this statue allows you to whisper the secret password, which opens a hidden trapdoor directly beneath her stone pedestal. Descending into this dark pathway reveals an underground corridor filled with forgotten magical obstacles and structural challenges.

As you move forward, you will encounter broken platforms and overgrown vegetation that block your immediate progress. Utilizing spells like Reparo to mend broken stone structures and Incendio to burn away aggressive vines ensures safe transit through the caverns. Players must also use Levioso to lift platforms into place, allowing them to scale steep ledges and continue deeper into the tunnels.

Infiltrating Honeydukes Cellar

At the end of the subterranean passage, a long ladder leads directly into the cluttered storeroom of the famous Hogsmeade sweet shop. The dried Billywig stings can be found resting clearly on a nearby wooden crate away from the main shop floor. Grabbing the required item allows you to make your exit safely through the front doors of the establishment without causing a scene.

Once the ingredient is secured, you can quickly return to the castle using the available Floo Flames fast travel system. Returning the stolen goods to Garreth completes the objective and triggers a unique dialogue choice regarding payment. Players can choose to give the item freely or demand a small fee for their hazardous efforts through the passage.

Quest Completion Rewards

Finishing this magical errand provides several valuable items that contribute toward overall game completion status. Players receive standard experience points that help elevate their character level for upcoming main story challenges. Additionally, Garreth rewards your efforts with a unique Conjuration spell recipe used to decorate the Room of Requirement.

This particular blueprint unlocks the Quidditch Board cosmetic piece, which can be placed freely within your customizable magical sanctuary. Completing the errand also improves your social standing with the adventurous Gryffindor student, paving the way for future interactions. Exploring these hidden corners remains an excellent way to fully appreciate the design depth embedded within the wizarding world peripheral zones.