It does not surprise Him that she is capable of solving the problem swiftly and efficiently, quickly discovering and implementing momentum and the torque and twists of physics through the wreathes of blue and orange. A pity. She is a good Test Subject, resourceful and capable.

Too much of one good thing will be their vice.

The lift hums down to the recently established final Test, the doors hushing open with a soft, pneumatic hiss.

The next Test is comparatively simple. A platform awaits activation above a narrow hallway of toxic sludge, the lateral blaze of a bright red beam requiring portal redirection to power it. The walls around the platform are black and slick, their surfaces portal-repellent. The sharp corner around which the platform's trajectory will go makes it impossible to see to its pathway's conclusion.

This time, He says nothing. The process is implicit. He will commence the Final End.