Quest 303

Walkthrough
       
 * Before you begin the quest, buy a Monster Scouting Book. This will save you time later.
 * To do this, go to a Tavern in any city and go downstairs to the Monster Tavern. Look for the Slime sign.
 * In the Monster Tavern, talk to the Item Vendor and choose a book with a cog icon (examine the item to see it).
 * Head to Gatara Wilderness and run to F-4 (the green dot on the map), where you will see a blue floating orb. Inside is the Delcroix Institute.
 * Gatara, The Capital of the Mountain → Gatara Wilderness
 * Interact with the blue portal, navigate to the end of the cave and pass through the door.
 * Talk to Wardrobe. It tasks you with obtaining two items: an Ancient Weapon and an Iridescent Ingot.
 * An Ancient Weapon is obtained as a drop from slaying Guardvaark / Skull Garoos monsters in Gatara Wilderness around E-2/E-3.
 * An Iridescent Ingot is obtained as a drop from slaying Clockwork Cucko / Gachakokkos monsters in Gatara Wilderness also around E-2/E-3.
 * The droprate should be very high, so continue to kill them until you receive the items.
 * Head back to the Delcroix Institute and give the Ancient Weapon and Iridescent Ingot to Wardrobe.
 * Wardrobe wants you to obtain a Monster Scouting Book. It explains that the book must be a non-magic type of scouting book, specifically. Hopefully you have already done this step.
 * Speak to Wardrobe again with the Scouting Book. It tells you to give the book to Delcroix.
 * Give the book to Delcroix for a cutscene and your rewards.
 * Congratulations on becoming an Item Master!