Thanks to Asta, Julius and Marx were able to undo the protection spell that was on the captives from the Eye of the Midnight Sun and ask them who the traitor among them was.
Most important of all... 
Kidnapping barrier mages.
.الأهمّ من كلّ شيء... اختطاف سحرة الحاجز
Und am schlimmsten wiegt
die Entführung der Barrieren-Magier.
Lo peor es el secuestro
de los magos de la barrera.
Lo peor es el secuestro
de los magos de la barrera.
Et le pire, c’est le kidnapping
des mages responsables du mur magique…
Ma la cosa più importante...
è il rapimento dei maghi della barriera.
E o pior... Sequestrou magos da barreira.
И что самое главное,