Completing Mickey Mouse's final friendship quest in Disney Dreamlight Valley requires solving a mysterious riddle to uncover a hidden room. Known as The Secret Door, this assignment takes players on a treasure hunt across multiple biomes to collect specific gemstones needed to unlock a concealed doorway. By following the proper steps, players can easily complete the quest and claim valuable rewards.

Finding the Hidden Location in Dreamlight Castle

To begin the journey, players must open the chest provided by Mickey Mouse in their inventory to obtain a photographic memory. The image reveals a grand door partially hidden behind a purple curtain, hinting at its location inside the Dream Castle. Entering the main foyer of the castle and exploring the ground level behind the potted plants on the right side uncovers the hidden entrance.

Gathering the Required Gemstones

Unlocking the door requires placing four standard gemstones into empty slots on the door's frame. Players will need to gather an Aquamarine, a Garnet, a Citrine, and a Tourmaline through mining. It is important to note that shiny versions of these gems will not work to progress the quest.

Opening the Door and Claiming Rewards

Once all four gems are collected, players must return to the Dream Castle and place them into the door in the correct positions. Entering the secret room triggers a conversation with Mickey, completing the storyline and earning 750 Friendship points along with an Enchanting Fountain. Inside the room, players can also loot several chests for useful crafting materials and bonus items.