its in 4th wave..
where the EYE is??? i cant understand 
When you enter GV you have NPC where leader
starts waves. Not at spawn point but at start point.
In the same room is beam called God's Eye,
where you can set auras for Def, Atk, HP, Chi...
There's also another beam that takes you to
another valley where you can mine green chests
after your leader starts waves.
On the small hill at the very beginning is the third
beam, yellow. In it will be Harpy Wraith that
mob waves want to kill if they pass your squad.
Near that other valley beam you have row of
NPC's where leader sets auras.
For those auras you need Celebean. Some of bean
you get from brown chests that spawn after each
boss you kill. Other you can get from green chests
and mobs in that other valley.
After several bosses at the same spot appears first
and later second Summonobot. Most of the time
people don't see any of it, because they do GV
at spawn point, on the other end of the valley.
I saw people that even don't kill mushroom mobs
for coins in that first room.
If you finish full GV, or if you die, you can come back
to start point and find Summonobots. None, one, or two,
depends on how many bosses you killed.
