Mandoras trophy? (solved)

[archmiel]

Edit> figured it out. In the attic stairwell area near the top floor, there is an area of the wall immediately left of where you enter from the bottom. In that area along the right side there is a bush with a strange yellow thing you can pull out. Pull it out, leave the room, come back, pull it out again, etc. until the trophy pops. 

 

-original post-

 

Other than the song related ones, this is the last trophy I need and it's pretty cryptic to me. I saw on Japanese discussion groups you get this by pulling out a book on "strange creatures" 3 times but there is no such book that I see. I pulled out each book I saw 3 times, but nothing. 

 

However, in the room, even though everything else is done, it says "there are many secrets in this room" so I get the feeling the library is the right place. 

Edited November 24, 2019 by archmiel