Who is Dominic 'Lucky' Calabrizi from Hidden Talents and what is their importance?

Dominic "Lucky" Calabrizi often finds things that others have lost or left behind. He has been thrown out of several schools because he is thought to be a thief. In reality, Lucky reveals that he hears things calling to him, and he must find them and keep them to silence the voices. Lucky attempts to avoid taking things that can get him into trouble, but sometimes the voices are impossible to ignore.