The Apprentice pathway is one of the 22 pathways of the mystical world, ruling over knowledge, logic, and the cognition of truth. Its bearers do not cast spells in the usual sense - they know, and this knowledge is more terrifying than incantations.
The path begins with the potion of Reader (Sequence 9) and leads to Sequence 0 - The Apprentice, a living repository of all that has been known. It belongs to the "Omnipotent God" group.
The lower steps of the path are a boon for detectives and scholars: the deduction of the Rationalism Apprentice and the intuition of the Detective would do credit to any hero of Backlund's crime novels.