underground passageway

Exploration Stage: Festive Street
From: Hana Chong
Description: I see no evidence of forced entry. All display cases are intact. Then, the storage room is the only clue. Let's carefully examine the storage room for hidden doors or soft walls.
Completed: Amazing! How did you realize that there was a secret passageway under the floor? So the tiles under the mop and bucket were fake... and the secret passageway was hidden under those tiles.