It was actually the key of the seventh Sky Castle…
This time, Lin Li really understood everything. No wonder the High Elves only mobilized six Sky Castles all the way till the end of the battle, while the most destructive and powerful seventh Sky Castle was not seen during the battle at all. So this was the cause of everything. Activating the seventh Sky Castle required a single key, and this key was just nice in Geresco's hands!
But one thing was weird. Why did Geresco have the Sky Castle's key?
It ought to be known that the seventh Sky Castle was built by the High Elves after expending countless years and infinite effort. For the High Elves, this seventh Sky Castle was not only their strongest weapon, but it was also the key to the final step for them to ascend into the domain of gods. The seven Sky Castles had always been in the control of Azshara, the queen of the High Elves, ever since they were completed.
