Enemies of Humanity is a Lore book introduced in Lightfall. Entries are unlocked upon reaching Guardian Rank 3 for the first time. It explains the enemies that threaten the Sol System.
I. The Threats We Face
The arrival of the Traveler, for all the good it brought to Sol, painted a target on the entire system. Humanity has faced enemies from all corners of the universe: the Fallen, the Hive, the Scorn, the [Vex]], the Cabal, and the Taken, to name a few.
While Guardians successfully fought off each onslaught, a greater enemy was revealed: the Witness. A mysterious voice in the Darkness that led our enemies to our solar system and the Traveler. Though the Witness was cloaked in mystery, one thing was clear: it sought the destruction of the Traveler.