Torrinaraxis was hatched to a Bronze named Akrisanasessis on an isolated peak in the Cloud Peaks above Amn. Not knowing his father or even if he was another dragon or one of the smaller races, Torrin was raised entirely by his mother and her stories in his formative years. He was regaled with stories of daring humans his mother had met over her lifetime. He learned of humanity through tales of valiant soldiers, cunning rogues, and powerful wizards. He avoided humanity at his mother's request and for fear of being mistaken for a monster until he was old enough to venture forth on his own, a path his mother firmly approved of. His departure was hastened when his mother arrived with news that she too would be leaving. The blue drake Iryklathagra had discovered her lair and did not approve of the metallic dragon living so close. Torrin descended from the Cloud Peaks on dragonback and was introduced to a traveling minstrel his mother had known on his way to Crimmor.
Crimmor and later Athkaltha introduced Torrin to the side of people his mother had neglected to tell him about. Traveling with the minstril Kellen and learning to entertain crowds with his exotic appearance and a gift for weaving stories in the caravan capital of Amn introduced him to all manner of people and temperaments. He trained with Kellen in the rapier, learned to play instruments, and bolstered the man's income by adding an exotic touch to his performances few bards could match. Torrin loved the attention and thrived on it for several years as he and Kellen swapped roles as age took its toll on the man. The Dragonborn was a regular performer at several taverns in Crimmor and he had a decent, stable life.
But Torrin was restless. The people he met were by and large common traders and few matched the stories his mother had told him. He wanted to be one of those heroes, to learn more about them and eventually have his name recorded alongside similar great names. He left Crimmor when Kellen passed, his old age finally claiming him and ventured for Candlekeep. He'd heard of the fortress-library several times while in Crimmor and assumed that if he was to find heroes, some would certainly be visiting the halls. His arrival and his unique appearance were noted by Gorion.
After his entrance was secured, several of the tales his mother had told him (spiced up a bit to make them more interesting, of course) and his unique heritage serving as a replacement for a valuable tome, Gorion approached him. The scholar seemed intrigued by some of his stories but had always been more interested in the more mundane stories and information he'd learned in Crimmor and the focus had always puzzled Torrin. They visited several times, always infrequently, as Torrin poured over histories and legends in search of some legendary item he could find or a task to fulfill to add his names to those among the stories he'd heard from Kellen and his mother. If he was going to go on an adventure, he wanted it to be an epic thing.