Under the castle Guides

[MrMaarten]

Are there any guides around for under the castle?
Info about possible drops/quests and the 20% xp scroll i heared about.

Thanks in advance

[DaDegano]

About the 20% exp scroll, you can pick it up from an NPC in the last stage of the event.
It respawns only once you defeat all the mobs tho.

I suggest of getting an exp party once you pick up the scroll, because the scroll lasts only for 2-3hours

[KillaYup]

When is this event on Piana / What is the allowed Levels?