In Resident Evil Requiem, during Grace's section in the Rhodes Hill Care Center, you must collect three Quartz gems - Moon, Sun, and Star - to unlock the door in the Central Hall.

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Prerequisites

  • West Wing Keycard (found in the Medication Room on West Wing 1F).
  • Moon Quartz (recommended, as it provides the Red Jewel needed for the Parlor to get the East Wing Keycard).

Step 1: Obtain the East Wing Keycard

Head to the West Wing via the West Wing Keycard. Navigate through the Kitchen (sneak past the Chef), Bathroom, Lounge, Dining Room, and Filing Room to reach the Chairman's Office on 2F. Solve the Moon Puzzle Box there (code: Moon, Sun, Star, Moon) to get the Moon Quartz and the Unicorn Trinket (contains Red Jewel).

Return to West Wing 1F and use the Red Jewel on the Unicorn door to enter the Parlor. The East Wing Keycard is on a severed arm under a table.

 

Step 2: Enter the East Wing and Reach 2F

Use the East Wing Keycard on the door in the Central Hall. Proceed through the Examination Room, Blood Lab (grab Blood Collector), Waiting Room, and up the stairs to 2F. Pass the Lounge and enter the Lead Researcher's Office.

 

Step 3: Get the Corrosive

In the Lead Researcher's Office, find the Sun Puzzle Box secured by a padlock. Read the note hinting at Corrosive. Head to the nearby Conference Room (back room). Fight or sneak past enemies (Singer and infected) to grab the Corrosive bottle in the corner.

Return and use the Corrosive on the padlock to melt it (triggers a cutscene).

Step 4: Solve the Sun Puzzle Box

Examine the Lead Researcher's Pictures (files on desk) for the clue: they show halves of the sequence in the background.

Solution: Star, Sun, Moon, Sun

Press the buttons in this order on the box. It opens to reveal the Sun Quartz and the Leatherbound Notebook (key for later organ puzzle).

 

Next Steps

Return to the Central Hall and insert the Sun Quartz into the door above the reception desk. Collect the remaining Star Quartz to escape the Care Center.

Tip: Collect Antique Coins along the way to exchange in the Parlor for upgrades like ammo or pouches.