Remember Candlekeep? The monastic library-fortress was the first area of the original Baldur's Gate, a place for introductory sidequests like curing a sick cow, finding a book in a haystack, and murdering rats in a storehouse. Classic stuff, most of which I managed to miss the first time I played it because I was naive enough to think I should get on with my quest instead of thoroughly rinsing the tutorial zone for every possible bit of XP. Oops.
While you do get to return to Candlekeep in chapter six of Baldur's Gate...