Quest #086 Brave the Caves - Swinedimples Academy
Quest Requirements: Go to the 2F and examine the glowing spot. Defeat Mortoad (Tywll Cave), Hunter Mech (Bad Cave) and Living Statue (Bowhole)
Quest Pre-Requirements: 100 Skill Points in the Boomerang Skill Tree; Side Quest #085 Complete
Reward: The Boomerang Bible and Gigathrow Ability
This quest begins by speaking with a young girl in the eastern part of the Swinedimples Academy courtyard. She's just south of the dormitory's southern entrance. You won't be able to accept this quest unless you've completed Side Quest #085 and have spent 100 Skill Points into the Boomerang Skill Tree.
For this quest, the very first thing that you will need to do is go up to the 2F of the Swinedimples Academy main building (northern most building) and examine the glowing location in the art room. A screen shot of exactly what we're looking for and where is shown below.
Once you've gotten this out of the way, our next stop is going to be Tywll Cave which is just northwest of Porth Llaffan. Basically what we need to do for this quest is defeat three different enemies with a Boomerang until they drop the items that we want.
Mortoad is found in Tywll Cave (northwest of Porth Llaffan)
Hunter Mech is found in Bad Cave (north of Bloomingdale)
Living Statue is found in Bowhole (northwest of Wormwood Creek)