I know that the Decalon lets one place Arcane Monoliths, which are instant, cheap outposts wherever you want, but I can't figure out how these spellbooks are supposed to work. I purchased the Tome of the Inferno for Procipinee, and, supposedly, it's supposed to let her use fire magic. But the equip button is greyed out. When I double click on it, it does nothing.
So how do you actually use these things?
