Use body to move the floating object in place: red book on the wall.
The flower pot is on the table.
Put the box in the cabinet.
Reset the two drawers.
The door in the office will open. Enter and take the lower half of the Ramesses Cube.
Walk through the corridor and reach the elevator. First, enter the observation room of the 7th lab and get the elevator key. Then, take the elevator.
Take the elevator downwards.
Elude the monsters and obtain the key of the prison backdoor in the room.
Pick up the key of the deciphering room on the corridor bench and move the bookshelf.
Use the backdoor key to return to the prison cell where the father has killed the Japanese. Then, use the tunnel to return to the hall.