You've stumbled across a rather hidden part of Emrub. These libraries were left here, abandoned, by someone who was here long ago.
This page, in legitimacy, is the hub page for my Les Gardiens archival initiative. Everything I can scrape off of the internet in terms of remnants is going to be archived here, since the web is volatile these days.
No content belongs to me, and if Ankama wishes it removed, feel free to contact me at email@example.com!