Known to spawn in room 3A, 3E, and 4D
PH are two types, either a sophist of Ryken or an academic of Ryken.
To Reach room 3E:
Entrance to 4A
4A to 2A
2A to 3B
3B to 1B
1B to 2B
2B to 3C
3C to 1C
1C to 3D
3D to 2C
2C to 4B
4B to 2D
2D to 3E