This item is provided when you begin the quest  which starts with Colossus Researcher Sophia at Cenarion Hold in Silithus. This quest is only available in the first 10 hours after the gates of Ahn'Qiraj are opened.
Colossus of Zora's Husk as a quest objectiveEdit
Patches and hotfixesEdit
Patch 1.9.0 (03-Jan-2006): Added