Complete the central-pillar room
Direct green, red, and blue into the pillar's matching receivers. Blue needs the mirror hidden by corruption behind the pillar.
This is the central-pillar room for the third symbol in Chapter 5. For the earlier branches, use the first-symbol platforms or second-symbol statue-gem rooms.
Beam routes
Clear reachable corruption with the beams so you can cross the room. The directions below start from the entrance; green, red, then blue is the source guide's suggested sequence, not a verified mandatory order.
- Green, entrance right: send the beam to the far-end mirror, then turn that mirror toward the receiver on the pillar's back.
- Red, entrance left: turn its mirror right to reach the mirror halfway along the rightmost path. Redirect that mirror into the receiver on that side of the pillar.
- Blue, centre: aim left to reach the far-left-path mirror. Use it to burn away the corruption behind the pillar and expose another mirror. Relay the light through that hidden mirror to the remaining unused mirror, which faces the blue receiver.
Success and common obstacles
After all 3 colours reach their matching receivers, return to the central pedestal and interact with its receptacle to reveal the third symbol. Lighting the receivers is not the final input. If blue cannot reach its receiver, check the corruption-covered mirror behind the pillar.
Sources and limits
The beam routes are documented in Ryan Woodrow’s Chapter 5 guide for The Big Lead, published August 28, 2026. The central-pillar room and concluding pedestal interaction are also covered by IGN’s Chapter 5 walkthrough, under “Find the Third Symbol” and The Outerhaven’s Chapter 5 color-mirror solution. The Big Lead’s Yahoo republication is the same source family.
This is a written-source reconstruction of the central-pillar room, not an in-house gameplay test or a complete Chapter 5 walkthrough. Return to puzzles by location for other tasks.