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“Now you say that he’s locked up in a 100 foot tall cage, eh? If my calculations are correct, we should be able to at least weaken the hinges on the cage, giving the giant enough leeway to break out. If this is going to work I’m going to need some plasticizers and stabilizers. Banshee essence should do nicely for the plasticizer. You can get that from the banshees in the Dead Fields, northeast of us.
The stabilizer can be found on the earthragers to the southwest, near Ebon Watch. Get a move on!”
-Engineer Reed
Engineer Reed at Crusader Forward Camp in Zul’Drak wants you to bring him 6 Banshee Essence and 6 Diatomaceous Earth.

Quest Giver: Engineer Reed — Crusader Forward Camp, Zul’Drak [25, 63]
Objective: Collect 6 Banshee Essence and 6 Diatomaceous Earth.
Quick Facts
Walkthrough
Engineer Reed needs materials to build a Jumbo Seaforium Charge capable of weakening a 100-foot cage. You’re collecting two ingredients from opposite directions.
Banshee Essence (6) — Northeast
Diatomaceous Earth (6) — Southwest
Efficiency Tips
Lore Context
Reed’s engineering plan uses banshee essence as a “plasticizer” and diatomaceous earth as a “stabilizer” for the Jumbo Seaforium Charge.
The real-life science checks out: diatomaceous earth was actually a key component in Alfred Nobel’s invention of dynamite, used to stabilize volatile nitroglycerin.
The NPC Crusader MacKellar standing next to Reed is likely a nod to MacGyver, the TV character famous for improvising solutions from everyday materials. Reed is essentially MacGyvering explosives from banshee ghosts and rock dust.
Explore Zul’Drak’s hidden easter eggs, lore mysteries, and connections across Warcraft history in Vikstone’s Zul’Drak Chronicles, along with the complete quest storyline.
You will be able to choose one of these rewards:
You will receive:
Upon completion of this quest you will gain:
Vikstone's War Journal“A hundred-foot cage? If my calculations are correct, we can weaken the hinges enough for the giant to break out himself.” Reed’s eyes had that gleam. “I’ll need plasticizers and stabilizers. Banshee essence from the Dead Fields. Diatomaceous earth from the earthragers near Ebon Watch. Get a move on!”

The Dead Fields was aptly named. Banshees drifted through the air, wailing their endless grief. The earthragers to the south were simpler work, if louder.
“Thankfully we weren’t short on explosives.” Reed was already assembling when I returned. “Jumbo seaforium charge should be no problem now.”
Engineers. Give them something to blow up and they’re happy.
The charge was built, and Reed’s confidence was either reassuring or terrifying. There was only one way to find out in Our Only Hope