The Secret of the Storm Horns

Heroic version (level 19) bestowed by Kara Patwin, Epic version (level 27) bestowed by Lorant Tass, both in North East end of Eveningstar. What Goes Up is the final quest in the chain and requires the other four quests in the chain for flagging.

Chain reward
Upon completing all the above quest, the original chain giver NPC offers you a list of named items that are chest drop within the arc. Items are all Normal version and BtCoE.