No one knows much about the librarian. Truth told, Edgar couldn't give too many specific details if he wanted to. He had no real memory of where he was from. His earliest memory is of his village being raided by marauders. Those who weren't killed were taken as slaves. That included Edgar.
As the marauders went from city to city, selling their prisoners in underworld auctions, Edgar was one of the few who was never bought. The reason was a limp in his right leg that made him useless for labor. Thus it was decided to put the boy to death, but when the brigand went into the slave tent to murder the boy he found his hands full with a young man who would fight tooth and nail for his own survival.
As it became clear that his viciousness far outweighed his handicap, the marauders saw fit to train the boy to be one of their own. He eventually trained himself to be rather quick for a cripple, and stout to boot. He became known as one of the band's more vicious fighters, earning the nickname "Ripper" for the way he ripped his enemies apart. But the Ripper wasn't loyal to the band at all. He hated them, still remembering his days in chains. So one night, he stole away from the camp, taking only his halberd and what he needed to escape. He left behind him a note that said "I'm leaving, and I swear there is nothing to gain in coming after me."
He found a temple of Iomedae and pleaded asylum. In time, he was taken into the church, where he worked as a book keeper. As his knowledge grew he was asked to go act as a missionary for his god.
Which has brought him here today. The humble librarian who carries a holy symbol in one hand and a book in the other.