Take him to see the smoking place first, and then go to the warehouse to get the fire extinguisher.

The warehouse should be opened first (the detached house in the upper right corner)

How to open a warehouse: first go to the sand pile and see a door handle. After he packed it, he dragged it to the door to welcome guests. When he saw a key, he opened the warehouse.

I hope you can succeed, and I hope you can adopt me.