
Just fire an orange portal onto the wall across the room and step back through the nearby blue portal to reach the landing. At the far side of the room is a landing you can warp to. Once through, look down the hall to the wide-open room beyond. Warp to the other side of either blade wheel by placing a blue portal on the wall behind the wheel and passing through a nearby orange portal. There are two massive sets of spinning blades in the next room. Place a blue portal behind the gate and warp through a nearby orange portal to get to the other side of the lock where you can open the next door to reach the next room. Through the door is another set of stair that leads to a locked gate.

Carry your momentum back down through the same orange portal on the ground and you should momentum jump across the fire pit and onto the high-above ledge.įollow the hall to the left and go up the short flight of stairs to open a door along the catwalk.

Place an orange portal on the ground and pass through it to drop from the blue portal above. To reach it, you'll need to perform a momentum jump by placing a blue portal at the very top of the nearby high wall. From here, you need to reach a high-above ledge that's on the other side of the fire pit.
