You have to go to the exit of the tunnel at daylight and you talk to the guy and he says come back at night. You do all this other stuff and you go through the tunnel at night and he opens it for u
through the back entrance to the tour tunnel and go up the ladder and solve the puzzle using all of the paper scraps.
At night, enter the tunnel from the exit at the docks. Go up the ladder near the exit and reach the Dragon face lock. This will lead to the museum's supply room. (see related question)
The main entrance is just to the left of the park where you arrive on the island. You will not be able to enter the museum until you have taken the Underground Tunnel Tour. At night, the secret underground entrance leads up into the supply room. You will need to open the Dragon Face lock. (see related question)
All you have to do is go to were you met the strange man and enter the tunnels there
go to the end and at night if you got all pieces go in the tunnel and climb the ladder and click the door or somthing then make the thing as same as the pieces.
You go in by the tunnel.
During the Tour, you can recover the torn picture piece. At night, you use the pieces to open the lock and enter the museum from below.
During the day, the docks exit is locked, and you can only enter the Tour by getting a ticket. Find two in the round trash can to the right of the entrance, then return them to the owner, who is at the Web Browser Cafe. During the night, the gate at the Docks is open.
To get the museum to let you in on Counterfeit Island, you have to go through the Underground Tunnel, then exit the tunnel, where it leads you to the City Docks. There will be a man waiting near the exit and he'll tell you to get a job at the museum, then meet him at night. You go to the museum and tell the guard you're there to apply for the job. He'll let you in the museum.
get it at night
Counterfeit Island
Night