Step 1

Put the Tower's Purple ball here (right side of the Tower on the second level).

Step 2

Go back to where you found the Purple ball and now a Green ball should appear, put it here (the little cut-out stairs right next to Eververse).

Step 3

Go back to the same spot and now a Black ball should appear, put it here (If you are facing the Traveler from where the ball spawns, this is the overhanging part behind you and to the left).

Step 4

Go back to the same spot and now a Blue ball should appear, put it here (this is the indent in the bridge between Zavala and Shaxx).

SOURCE

#destiny2 #destiny2guide #easteregg