Where can I get mushrooms from rust lake Hotel?

In the owl mural. In the game "rust lake: Hotel", before entering Teacher Lu's room, you can look at the owl's painting with mushrooms in your hand. Mushrooms can be obtained from here. rust lake: Hotel is an escape game that burns the brain and solves puzzles. Employees and various items in the game can interact with each other, and the plot is interlocking, which needs to be deciphered and escaped through props in the game.