Subaru heads to Roswaal's mansion in hopes of finding out what's going on there and how he can fix it. He has Frederica and Petra evacuate to Arlam Village to protect them from Elsa's attack, then heads to Beatrice's forbidden library. He tries to get Beatrice out of the library, but her wishes don't align with his plans, and their discussion goes nowhere. Then, against all logic, Elsa finds her way into the forbidden library...
Once I knew that, all I had to 
do was leave every door open.
حالما عرفتُ ذلك، كان كلّ ما ترتّب عليّ
هو ترك كلّ باب مفتوحاً
Wenn man das weiß, muss man nur
alle Türen öffnen und geöffnet lassen.
Una vez supe eso, solo tuve
que dejar abiertas todas las puertas.
Una vez supe eso, solo tenía
que dejar abiertas todas las puertas.
Pour la contrer,
il suffisait donc de toutes les ouvrir.
Sapendo questo,
mi è bastato lasciare aperte tutte le porte.
Ao saber isso, eu só precisaria
abrir todas as portas.
Чтобы его обойти, достаточно
открыть каждую из них в особняке.