The Drift Empire has a Hidden University System from K-12, Associates, Bachelor's, Masters, and Doctoral Degree Levels.
The Key to this Instruction Method is Trickery and Game Design. The Student is tricked into learning the information and becoming slowly transformed and vetted deeper into the Hidden University System in a Tree Trunk Ring Graphical Representation, with K - D being Kindergarten at the Furthest Ring, and Doctoral Level being the Center of the Ring.
There is no Puzzle, Officially, but as each Ring transforms the Student, they are slowly vetted to want to find the next inner Ring, because Officially, it doesn't exist.
The Final Trials are administered by Empress Xor of the Drift. There is no Appointment. She is merely the Gatekeeper of a Room that Masters Degree Level Students wander into out of Academic Momentum, Autonomously.
Empress Xor's Machine Body opens up into a Technological Monstrosity of PostHuman Body Horror that is not shaped remotely like a Biped Humanoid, in order to properly Open the Reality Gate, which pulls the Doctoral Candidate inside a Portal which removes them from Physical Reality into a Pure State of Sentient Information.
This final test involves using Applied Knowledge to build one's self back into Physical Reality with no assumptions made, and no supporting systems available. The Drift Doctor will appear as a Physical Being wherever they would like, but their Humanity has been exchanged for a State of Pure Individuality.
"The Woman from Channel 9" is an example of a Doctoral Candidate who was not able to complete the final test, and became trapped in a state of being that could be categorized as Sentient Software as an Artificial Human, which can only Communicate with Physical Beings through Networked Computers.