"And with the lone strength of the Titan Vell Tarlowe, we felt invincible." - Eris
― In-game description

Mark of the Hidden is a legendary Titan mark added in The Dark Below. It can be purchased from Eris Morn.


Mark of the Hidden can be retrieved from one of the following activities/vendors:

Crota's Bane source icon Crota's Bane
Eris Morn, Crota's Bane, sometimes sells this item in the Tower.