We located the temple. And while trying to find an entrance I had a vision of some kind of underground portal. The portal was closed by some kind of shimmering semi-tranparent field. And through it I saw what looked like strange bipedal creatures.
We managed to get inside and had to defeat four elementals which all left an orb. Together these were used to unlock what looked like a container. Inside we found another orb of an unknown material.
When we returned from our expedition our city was destroyed! We were attacked by strange humanoids that resembled the ones I had seen in my vision. I don’t know how, but we survived their assault.
When we came to, our city was gone. There was no one left alive except from us. We decided to bury our dead, but somehow their spirits never reached our ancestors. Could it be these foul beings were perverting the very nature of things?
After some deliberation I decided to effectively bury our city. My reasons for this were as follows. There was nothing left. All the inhabitants were gone, so the spirit of this city as it were had to pass on as well. We all vowed we would see the guilty punished for this, and a new city founded. But this old one was gone. The we took the hearts of the temples, the essence of the gods in that place, and left the ruins behind.