Go straight through the tunnel and once you see that Richard is online, contact him.
Once the conversation is over, turn around and enter the luminous circle located in front of you.
Each time you will be able to choose from three options.
Also note that the layout in which you are currently located is marked with asterisks on both sides.
go for the 2nd layout and confirm your choice (the last option).
Turn around again and notice that there is now a ventilation shaft on the left side of the wall.
As Henry, fly straight ahead, and then turn right.
Go to the very end of the shaft and turn left, left and go straight ahead.
You will end up in a corridor with a security panel located on the left side.
This will open a passage for John, located directly in front of him.
Go straight ahead and then turn right, where you will find another luminous circle on the ground.
Stand inside of it to contact Richard.
This time you’re gonna wanna pick the 3rd option.
Notice that a short corridor with closed doors at its end will appear on the left side.
You will end up in front of closed doors, with a control panel right next to it.
Interact with it to fire up the doors and Henry will enter the room again.
The doors will close and another luminous circle will appear on the left side.
Enter it, contact Richard and select layout 1.
Enter the next circle (opposite), contact Richard and select layout 2.
Use it to summon Henry again.
As John, get back to the previously used circle and contact Richard again.
Now enter the circle opposite your current position, contact Richard and select layout 3.
Henry will join John here.
An exit leading outside should appear behind Richard.
Turn to the left and continue straight ahead.
Use the elevator located there (Wizard of Oz) achievement.
At the end you must make two important decisions.
You will also receive theRole Creditsachievement for completing the game.
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