Charcoal....

[Lann]

Where do I get Charcoal for a certain quest?

[HongChina]

I'm fairly confused as to what drops it as well. Nothing in my bestiary lists it so far

[Reis]

I've gotten that drop while doing Odin's dungeon. I'll edit this post with the mobs name when I can find it xD. Edit: Alright this a picture of the boss, basically a different version of the ones you see in earlier dungeons. Can't really recall if their in other dungeons besides Odin's. Sorry :/.

[HongChina]

Hrm. If it drops from them, it might also be a Murikabe drop as well

[qqchurch]

This thread says that it drops from Dainurikabe and Akamekabe. No idea on their location, though (seems like they're Kyoto-based from two posts above me).