"you did a very good job" the principal patted lyra on the shoulder and grabbed Bastian with an arm and left for his office. He met professor nerissa on his way to the office an instructed her to clear the rest of the bodies and take down the barrier so the students could leave.
The principal knew that there was no way the mercenaries could bypass the academy security system without the assistance of an insider and it turned out that insider was Bastian but he still needed to check the security log of the past few weeks to be certain.
He knocked out Bastian not wanting to take chances and left to the academy's observation room where he checked and confirmed Bastian to be the only one who logged in at odd hours, he tried to check the camera footage for that day but received nothing for the hours Bastian was alone in the academy.