Before he was the Didact, master strategist of the Prometheans and defender of the Mantle, he was Shadow-of-Sundered-Star. As a young Forerunner, Shadow-of-Sundered-Star aspires to join the elite Prometheans, but a test of survival with nothing but his skill and wits is required. Under the tutelage of Sangheili blademaster, he hopes to prove himself to the powers that be.