Kill the Messenger
Go to the Throne World destination in the Director and launch the "Vox Obscura" Exotic quest on Normal difficulty.
Complete the "Vox Obscura" Exotic quest.
A mysterious foe seeks to sabotage Empress Caiatl's rule… and weaken the Sol system in advance of the coming Darkness.
Brave the treacherous landscape of the Red Planet to learn who would dare cross the united forces of the Cabal legions… and the Vanguard.