Midnight, Principal's office.
*Step**Step*
Jareth walked inside the office with an expressionless look on his face and followed the same process as before to make the magic barrier appear in front of him.
'I really underestimated your determination to hide the things that are inside your hidden library, Nathan…'
'You really created a very impressive barrier; it must have taken at least a decade to perfect this barrier to this kind of state…. I never thought I would say this, but you really are 'Good' at barriers…'
Even with 'Mana Singularity' and extreme mana purity, it still took Jareth such a long time to finally analyze the whole magic barrier and find a countermeasure for it.
Moreover, he even ended up asking for help from Thomas too; all this just shows how much time and effort Nathan put into creating this barrier.