Subaru had reached for the door, determined to save Rem from harm even if his current world would soon end. But instead of Rem, he found himself staring at Beatrice's library. Beatrice had remained silent throughout Elsa's attack and saved Subaru's life just moments before Elsa could claim it. Subaru shouts at Beatrice, demanding to know why she didn't help before everyone else was killed, and an intense argument ensues. Then Subaru catches sight of a familiar-looking book...
You mean the reason why Frederica 
left the Sanctuary?
تقصد سبب مغادرة فريدريكا المأوى؟
¿Por qué Frederica dejó el Santuario?
¿Por qué Frederica dejó el Santuario?
À propos du fait que Frederica
ait pu partir d’ici ?
Quella riguardo al motivo per cui
Frederica ha lasciato il Santuario?
Sobre como a Frederica
conseguiu sair do Santuário?
Хочешь знать, как Фредерика
 оказалась снаружи?