After listening to the conversation between the Heretic Emissary and Ice Caller Briatha, click the totem item in your inventory.  It will summon the Earthen Ring Guide (wolf). He says: “The elemental spirits are restless … Have you discovered something?

Your journey is not over yet. You must now return to the Earthern Ring Elder located at the Midsummer Fire Festival camp in Shattrath City—just north of the Flightmaster.