Board Thread:Questions and Answers/@comment-26429365-20170615150150/@comment-29781768-20180302140614

He probably just opened a book. Not necessarly Flugel's book. Sure, it is probably connected to Flugel, but it's probably not Flugel, as Flugel is kinda one of the major characters in Re:Zero, I doubt the author would reveal such information about him in Arc 6 instead of, why I don't know, Arc 10/11.