Altar of the Stars
A seemingly harmless altar situated near the town of Amstad. It has lain dormant for centuries, only being used as an offering site for Asta at certain times. The layout of the altar is similar to a henge, wherein you have pairs of stones set and laid out in 9 directions, evenly distributed into three rings around it.
Some lizardmen have been seen using it recently, giving live sacrifices and mumbling their own unspeakable prayers to it. What they failed to realize was that the altar was indeed active and needed someone more capable to wield it. Jorn ibn-Omar ibn-Rashid al-Maghrib succesfully used it to open a portal between two worlds. But before anything could come through, he also managed to seal it for the time being.
What will happen to the altar in the end is yet to be seen.