The three boys had worked fast this time, and because they were in a rush, even Fex had to help beyond his determined contribution - An unusual trait of the young man - for the reason that he was afraid of getting caught. Rather than simply using his influence skill to clear their minds, he also commanded them to follow him.
Then, whenever they arrived at a safe place or a random hall, he would break the skill, allowing their minds to be cleared. It also returned them to normal as if nothing had ever happened. The group did the very same thing to all three students, and they were all fully healed as normal.
"What are we going to do about the window?" Peter asked.
"Don't worry, I can deal with that. I will just make the other two students in the room think that they were in a fight. They can just take the blame." Fex said.