Spellbook Seller Rouke:
You can obtain the Giants' Experimental Tools Fragments 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 Giants' Experimental Tool Fragments, I will re-assemble them into the Giants' 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...
The Giants' Experimental Tools are easily broken, so you had better be sure to carry a sufficient number of them.