Inventor Maru:
Thank you very much! I can tell already that you will prove very helpful to my experiment. Let me tell you about the materials I need.
The primary ingredient is called "Energy Ore".
You can acquire it by hunting the monsters in the Eastern Mining Zone, which lies north of the Dwarven Village.
The monsters you will encounter there include the "Red Eye Barbed Bat, Northern Trimden, Kerope Werewolf, Kerope Werewolf Chief, Northern Goblin, Northern Goblin Leader, Spine Golem and Enchanted Spine Golem." These are the monsters you must hunt. Understand?
Now, gather as much Energy Ore as possible. Ah! I am so busy! Busy! I must take care to revise the formula in the time we have left. Good luck!