You can actually just sit on the questgiver for a few seconds and he pops up.
Quest
Pebble
A World of Warcraft quest in Deepholm. Facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
This is exactly where i waited and found him.
http://www.wowhead.com/maps?data=5042:321497
This quest is missable. While doing quests in the area, Pebble may appear near you, and the quests he gives you is part of the chain. This is a breadcrumb quest in case of the rare circumstance that he doesn't appear to you while you're questing so as to inform you what you need to do next (wait for him to appear), or just in case you're oblivious enough not to notice that little blue questgiver following you around.
Quest facts
The client quest POI data records no map location for this quest, so no map is shown.
Check whether you have already completed this quest
in-game: /run print(C_QuestLog.IsQuestFlaggedCompleted(28869))
Description
If you hadn't noticed, there's a very small elemental that has taken a liking to you. If you stay on the ground for even a few moments, I'm sure you'll spot him. You seem to be quite adept at making friends down here. A good talent to have.
Community notes from Wowhead · 24 comments
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