The Elder Cipher was a quest that rewarded a Guardian with Lord of Wolves, Queenbreakers' Bow, or Dreg's Promise. It could be received as a random reward immediately after killing the final boss of a level 34 or 35 Prison of Elders challenge activity. In The Taken King, the Elder Cipher is no longer obtainable. The weapons are instead obtained directly from the Queen's Chest at the end of any Prison of Elders activity.