Aspect of Shterot and Ancient One's Altar

This mysterious ancient altar holds a reality bending secret. On the right night, when the stars mutter their portents, the fissure that splits the back of this structure becomes a rift in the very fabric of existence through which an elder god may bestow its gifts upon its followers, or enact its terrifying will upon those who oppose it.

The ancient altar can be used as a standalone structure for any campaign that requires an abandoned religious site, but if desired the Aspect of Sht