Hogwarts Legacy delivers a magical open world filled with intricate mysteries, hidden items, and engaging side quests that reward curious students. Among the early exploration challenges players encounter is the Cache in the Castle side quest, which triggers after speaking with fellow student Arthur Plummly. This particular quest presents players with a cryptic treasure map containing sketches of specific landmarks located within the sprawling school grounds. Finding these locations requires a keen eye and a solid understanding of the castle layout, ensuring an exciting journey for completionists.
Starting the Cache in the Castle Side Quest
To begin this adventure, you need to locate Arthur Plummly standing near the Charms Classroom in the Astronomy Wing. He will happily hand over a mysterious piece of parchment that shows three distinct clues pointing toward hidden secrets. This initial interaction officially activates the exploration quest line and encourages players to observe the historical architecture of the academy more closely.
The drawing itself acts as your only guide, forcing you to rely on visual recognition rather than standard quest markers on your mini-map. This design choice provides a highly satisfying puzzle-solving experience that rewards true dedication to uncovering historical lore. Successfully deciphering the sketches allows you to progress through the massive castle and claim a unique appearance item.
Locating the First Two Landmarks
Your first destination based on the drawing is an impressive skeletal display situated just a few floors below the Charms area. Walking down the nearby staircase will quickly lead you straight to the massive rhinoceros skeleton standing proudly in the corridor. Simply approaching this towering exhibit will trigger the next stage of your investigation and update your progress seamlessly.
From the skeletal display, you must head toward the nearby Transfiguration Courtyard to spot the second key landmark drawn on the paper. Look out for the large, beautiful fountain decorated with an intricate dragon statue sitting directly in the center of the courtyard. Walking up to this fountain confirms you are on the right path and guides you toward the final painting puzzle.
Solving the Painting Puzzle and Claiming Rewards
The third clue on the document directs players through the doors behind the dragon fountain and up a short flight of stairs. You will quickly encounter a large painting depicting a cozy, snow-covered house surrounded by peaceful winter trees. To reveal the secret storage space hidden directly behind the canvas, you simply need to cast the Accio spell on the frame handle.
Once the hidden passage swings open, a secret chest will be revealed containing your well-deserved reward for completing the investigation. Inside this chest, you will find the exclusive Authentic Historians Uniform appearance item to customize your student. You can then return to Arthur Plummly to share your exciting findings and officially conclude the side quest.
