TheWoWDB[npc=53023] gives 3 quests for ZG:
Break Their Spirits
Secondary Targets
The Beasts WithinWhen you enter the instance, chances are that she will randomly offer you one or two of the quests but not all three. This problem had me scratching my head for a while, as I've never seen this behavior before in a WoW dungeon. It has nothing to do with quest order/prequisites, weekly quests, daily heroic lockouts, or bugged UI's.
The solution is simply to go inside the dungeon's entrance solo, and if she doesn't give you all three quests, then go outside, click your player frame, and click "reset all instances". Go back in and see if she gives you whatever you're missing. If she doesn't, go back out and repeat. She will eventually offer all three, though it might take several resets. I tried this strategy on two different characters and it worked on both.
Be aware that you can only enter 5 instances per hour before you get the "You have entered too many instances recently" message from the server.
Quest
The Beasts Within
A World of Warcraft quest in Zul'Gurub. Facts and objectives from the current retail game data.
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
The offspring are swimming all around the moat in the middle of the instance.
The Hive Queen is at the top of the water fall on the west side of the map. You can reach it by making an immediate left once you enter the instance.
The turtle is directly to the right of the second bridge, down in the water.
-Raw
Edited: Added the location of the turtle. And fixed my awful spelling.
Same here, I wasn't able to get the quest but others in my group were.
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(29172))
Description
<Bloodslayer T'ara eyes you for a moment.> After de fall of Hakkar, de city of de Gurubashi fell into disrepair, and de jungle claimed most of Zul'Gurub for its own. Some powerful beasts now be livin' in da cracks an' hollows of de ancient city. We seen de powers dem Gurubashi priests wield - dey turn de very plantlife against us wit' venomous concoctions. You tink you be strong? Dispose of dese beasts, before dey become mindless agents of Jin'do.
Getting there
Inside the dungeon: Zul'Gurub
Zul'Gurub was the capital of the Gurubashi jungle trolls, a tribe that once controlled the vast jungles of the south. It was here that Jin'do the Hexxer summoned the savage loa Hakkar the Soulflayer into Azeroth.
Bosses in the Adventure Guide, in order: High Priest Venoxis, Bloodlord Mandokir, Cache of Madness - Gri'lek, Cache of Madness - Hazza'rah, Cache of Madness - Renataki, Cache of Madness - Wushoolay, High Priestess Kilnara, Zanzil, Jin'do the Godbreaker.
Entrance: Zul'Gurub, Northern Stranglethorn at 72.2, 32.9.
Instance text, bosses and entrances are the client’s Adventure Guide data.
Community notes from Wowhead · 11 comments
Top 3 shown aboveThe comments below were written by Wowhead users. They are community notes, not TheWoWDB comments. See them in context on Wowhead.
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Where this quest fits
Other quests with this name
This one: Zul'Gurub · Level 35 · Heroic.
Steps, storylines and map placement from the client’s QuestLine, prerequisite and QuestPOI data; neighbouring quest text is Blizzard’s own (quest API), shortened to its opening sentences.