Sethekk Ritual Brew
Sethekk Ritual Brew is found at [71.6, 48.6] onshore between Lost Veil Anzu and Sethekk Hollow in eastern Spires of Arak. To get there, from the Spawn of Sethe event at the southern end of Sethekk Hollow, follow the trail downhill southeast to the sea. At the white tree at [71.2, 49.2] with pink leaves, turn north to find a small unmarked trail heading back uphill, which has a hard right turn roughly 20 yards up and leads directly to the effigy. Loot the brew to acquire six 
[Skyreach Sunrise] and eight 
[Healing Tonic].
Tracking quest
To check whether the Sethekk Ritual Brew has been looted, copy and paste this command into the chat window:
/run print(C_QuestLog.IsQuestFlaggedCompleted(36450))
If a "true" appears in the chat window, the Sethekk Ritual Brew has been looted; "false" indicates the opposite.
Patch changes
Patch 6.0.2 (2014-10-14): Added.