Carceri is a prison plane from which few, if any, escape.
Some call it Tartarus.
The ground itself can kill the unwary.
Those who go there do not return unchanged.
The very land seems hostile to mortal life.
Some whisper of a confessional threshold within the plane that strips denial away before deeper passage is allowed.
What is Known
Carceri is a prison plane, also known as Tartarus.
it is like a string of pearls, each orb is the size of a material plane, and crossing from one to another will put you on a different material plane.
As you go lower through each layer, the size of the planets get smaller and further apart.
kinda like you are going deeper into the material planed
It is a place of extreme hostility and imprisonment.
The environment is unnatural and deadly.
It is considered nearly impossible to leave once entered.
The party reached Carceri after passing through the Gray Wastes and the River Styx.
History
The party arrived in Carceri during the events recorded in the session now known as The Descent into Carceri.
Their arrival came after a journey through the Gray Wastes, the River Styx, the blackstone dock, Kronos’s prison, and the confessional archway deeper within the plane.