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.
who is working with the 
Eye of the Midnight Sun.
.يعمل مع عين شمس منتصف اللّيل
ist einer von euch.
qui a aidé
l’Œil maléfique du crépuscule.
che collabora con l'Occhio magico
 della Notte Bianca.
que está trabalhando com o
Olho do Sol da Meia-Noite.