The moment Oliver, Blake, and Klaus left the Academy, the Crowned Prince gave the order for Grey to be found. The Instructors started to search for him, but after he hid in Chris' valley, it was impossible to locate him. They wasted weeks searching for Grey, but they didn't get any result.
The Crowned Prince wasn't sure if Grey gave his friends a drop of the Great Earth Essence Liquid, but he couldn't let it go without investigating. With Grey and Klaus currently impossible to find, he set his eyes on the other two, Alice and Reynolds.
Alice was the daughter of a prestigious and powerful family, it wouldn't be easy to get her, Reynolds on the other hand, was a piece of cake.
One week before Grey left Chris' valley.
Eternal City.