Although Patch 10.2 has been released for a few weeks now, secrets are still being discovered! Folks from the WoW Secret Finding Discord poked around the Emerald Dream and found a hidden Warglaive — Alara'shinu, a fel-themed version of the 10.2 World Quest warglaive! Thanks to Starverse, Ryldor, Scarseeker and Saltarith of <The Veiled Glaive> for the tip.
If you aren't interested on the appearance, this is also a good starter weapon for any Demon Hunter alts, as it is ilvl441 Veteran 1/8, upgradeable all the way to ilvl463. Learn how to obtain this Warglaive in this post.
As a Demon Hunter, speak with Landeron Felfury at the Central Encampment in the Emerald Dream. He's just East of the Dream Wardens barracks. For Demon Hunters, Landeron will have special dialogue which will trigger the events that start this secret.
/way #2200 50.5 60.9 Landeron Felfury
Landeron's dialogue gives the hint for the next portion of the secret — The Broken Shore. Head there — The exact area is the area where you originally faced Caria Felsoul for the Vengeance artifact back in Legion, the Aldrachi Warblades. This is just north of the Aalgen Point flight path — Enter the Lost Temple through the cracks, and in there, you will see a green circle containing a memory of