help please! Athena events in Guild base

Hello guys! Do you know how to enter in this dungeon?

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Go to guild.
fast/easy guide about new (old) athena quest:
during the day from 9:00 to 12:00 and from 18:00 to 22:00 you can play a quest at base.
talk to athena for get 3 part
part1: kill 50 enemy
part2: kill 1 general and 3 sub , general appera in west path(griffon) east path (garuda)or to center arena (rada) randomly, call the others before attack or they have to wait next general and need a little.
part3: can be completed only during invasion time so 18:00-22:00 game time, invade another base and search the enemy with the !, kill him and is complete.

for last part i suggest to go to ally base for prevent trouble. write before go.

thanks to all
rego

thank you very very much :D . i'm trying now

I've finished it,and now got a new skill in skillbar O_o? How can I use it?