The large circular puzzle room is composed of a central area has a missing Fan leading to a large platform overhead, as well as three Blue doors controlled by Pressure plates. On the left and right are symetrical-looking area with a blue and green Emitter respectively, one Connector and a set of two doors connecting to the back area. In this back area are two Clones and a set of Pressure plates that lead back to the central area. A Fan can propel the player on a ledge that goes all around the room, each side leading to a Pressure plate used to reveal six Receivers that must all be powered to gain access to the underground room where the Progress Wheel lies.
Hints
If you have trouble getting started:
[ hint ]
The first order of business is to free the two Clones trapped in the back area. The one on the right is not too hard to reach.
Take the green Connector that is inside, connect it to the green Emitter, the green Receiver nearby as well as the connector on the upper platform. Place it down on the Pressure plate.
Drop the Connector through the opening in the grate and take control of Byron.
Take the Connector and bring it to the central room. Link the green Connector to the green Receiver that leads to the back room and place it down on the Pressure plate.
Take the green Connector from the left room, link the blue Connector to the blue Receiver that leads to the back room.
Walk into the back area and take control of the Clone that stayed on the Pressure plate.
Take the green Connector from inside the right room, bring it to the upper platform and link the red Connector to the red Receiver by the Fan in the back area.
Jump back down, and bring the Connector in the central area to the back room.
Fly back up onto the upper platform and take control of one of the Clones from there.
Walk all the way around to one of the Pressure plates and take control of the other Clone from there.
Walk all the way around to the other Pressure plate and take control of Byron on the upper platform.
Take one of the Connectors, connect it to the blue Emitter as well as both blue Receivers by the entrance. Place it down on the outside of the platform, at around 1 o'clock.
Take another Connector, connect it to the red Emitter as well as both red Receivers by the entrance. Place it down on the outside of the platform, right in the middle.
Take another Connector, connect it to the green Emitter as well as both green Receivers by the entrance. Place it down on the outside of the platform, at around 11 o'clock. Jump down and finish the puzzle.
Miscellaneous
Nightmare hologram
Right of the entrance, a red hologram for the Nightmare 11 audio log can be found.