Vale wasn't too surprised after hearing this. Instead, he just felt that it would actually make a lot of sense that he had no idea about them until now.
The Lord of the Secrets was just too mysterious. Not even the other Eminence of the Sea or the Fortune Goddess dared to antagonize this Church, which was filled with unknown.
Furthermore, Vale knew that the Church of the Fortune Goddess had Holy Knights as their guardians. The Church of the Divine Sorcerer had various levels of Sorcerers. The Church of the Eminence of the Sea had Storm Knights, while the Church of the Three Paragons had Sacred Knights.
As for the Church of the Lord of the Secrets? He had no idea about it, or he simply couldn't recall the reports he had read from the Arcane Bureau.
Anyway, he just decided to ask Merlin about it.