Irony can be so ironic.Not really, the Fir Bolg were really the most ‘normal‘ of the early settlers of Ireland, they were warrior tribes who established 5 Kingdoms around the Hill of Tara, and had generally a settled agrarian life until they had to fight off the more monstrous Fomorians and then the more fey like Tuatha du Danan (sp?).
Its the Tuatha who are the fey touched, not the Fir Bolg.
Nonetheless :
Thats a nice use of the race, but it is ironic given that Fir Bolg were described by Irish chronicles as “talkative, guileful” and “promoters of discord” rather than reclusive librarians.
Nonetheless I do like the backstory and use you have for your race in your game
The best at guile never tell a lie.