Spellbook Seller Rouke:
You can obtain the pieces from the Giant's Experimental Tools by defeating the Marsh Stakatos, Stinger Wasps, Marsh Stakato Workers, Toad Lords, Marsh Stakato Soldiers, Marsh Spiders and Marsh Stakato Drones in the Cruma Marshlands.
If you bring me 10 Giant's Experimental Tool Fragments, I will re-assemble them into the Giant's Experimental Tool.
If you then fight the monsters while wearing this, the traitors who are attracted to the device will appear.
Defeat them and bring me 3 research papers concerning the Giants' technology. Then you will have done your duty.