The Ancient One had actually been watching John's movements all along.
She had temporarily dispelled the magic on the Eye of Agamotto. It was a powerful enchantment placed by Agamotto, the Sorcerer Supreme. Without her intervention, even if John obtained the Eye of Agamotto, removing the Time Stone without damaging it would have been difficult.
Magic's advantage over technology was that it could grow stronger with time, whereas technology gradually became obsolete.
John's study of books on dimensional magic concerned the Ancient One deeply.
Whenever she recalled John's talk of invading other dimensions, she could not help frowning.
The Sorcerer Supreme's duty was to protect, though other worlds fell outside that responsibility.
The last sorcerer who had sought to invade other worlds was Dormammu.
So when the Ancient One saw what John was doing, she wanted to stop him.
But the moment that thought arose, she held herself back.
The Wizard King was now an ally of Kamar-Taj, and she had agreed to let him study the Time Stone.
If she alienated him over this, everything she had done would have been for nothing.
The Ancient One could now vaguely guess that the fog shrouding this world's future originated from the Wizard King.
The best way to handle such an unstable variable was to maintain a firm alliance with him.
If the Wizard King lost control, it might throw not only this world, but the entire universe's timeline into utter chaos.
The Ancient One guided the new sorcerers through their training, but her thoughts drifted elsewhere.
After she lent the Time Stone to the Dr. Banner from the future, Banner had kept his promise and sent someone to return it.
Only, the person who arrived was Steve.
Time turned back to the Battle of New York.
"I'm returning the