Trading with Trolls 4
"Sadly no, um, Jendrich. I'm, er, I was a research apprentice. 'Knowledge' is a college of magic that starts from detection spells and works up to spells like that, but those are things I'd have learned over the next three years of training -- or not, if I didn't choose a research career path in the end. The ones I know are mostly pointed at a specific one to remember my way -- rather helpful in an archive the size of a small town, with literally thousands of book shelves and no prior planning in the layout. Next in line would probably have been one to find a specific item -- say, a particular volume in the archive."