Map Legend
1.Chamber 14 Start Point
2.Test Chamber
As you exit the elevator in Test Chamber 14, turn left at the end of the hall. Some stairs emerge from the pit ahead of you. Climb them. After you reach the top, they retract. This is fine—that pit will come in handy momentarily. Walk past the Ball Catcher, and notice the Weighted Storage Cube atop the ledge. Since you can’t place a portal on any of those surfaces, you have to place one on the wall opposite the Cube, near the observation window. Place your second portal at the bottom of the pit, and fling to the Cube.
Now that you’ve got the Cube, walk back to a pit and climb down the stairs when they emerge. Place the Cube on the red button down the hall and enter the blast doors that just opened.
Beyond the door is a hallway featuring a goo pit with a stationary platform between two lifts that periodically ascend and descend. Ignore these for now, and aim a portal at the far end of the hallway. Place your second portal near you and walk through. Enter the room at the end of the hall.
You are now in disturbing proximity to a Ball Launcher and its lethal projectile. You no doubt want to get out of here ASAP, so place a portal on the charred spot on the wall where the ball makes contact. No portal trickery works in the goo-filled hallway this time, unfortunately. Just carefully jump from platform to platform, run back to the first room, go up the stairs, and place a portal on the ceiling above the Ball Catcher that you passed on your way to retrieve the Cube.
You have just activated the lift to the exit of Test Chamber 14. Vacate the premises at your leisure.
Remember to try The Advanced and Portal Challenge Strategies