The Pit of Heretics

Introduced in Ancient Powers.

This ziggurat is located southeast of Candeth Keep at 88.0S, 55.0W and is referenced by Ulgrim the Unpleasant:

You give Ulgrim the Unpleasant Stout.

Ulgrim the Unpleasant tells you, "Moarsman Island? Yeah, I know how to get there. You run west from here until you reach the coast, then take a left turn, follow the curve until it flattens out, then take a right and swim until you hit the shore of the new island. Watch for the ziggurats. Simple! Why is it so hard for people to figure out?"

The new land mass where presumably Moarsman City is located can be viewed to the south. There are two statues near the fort, one to the east (88.0S, 55.5W) and one to the west (88.0S, 54.5W).

West Statue

Red Coral Hollow - This hollow is inscribed with coral numbers that read 78.
Green Coral Hollow - This hollow is inscribed with coral numbers that read 117.
Blue Coral Hollow - This hollow is inscribed with coral numbers that read 42.

The statues eyes appear to grow and encompass all that you see. They peer into your mind.
Statue tells you, "You do not have the Sacred Staff. Be gone, imposter."
Statue teleports you with The Pit of Heretics.

Warning: If you talk to the statue itself, you will be portaled into the middle of the fort, which contains several sclavus. There is no exit, aside from recalling.

East Statue

Red Coral Hollow - This hollow is inscribed with coral numbers that read 150.
Green Coral Hollow - This hollow is inscribed with coral numbers that read 112.
Blue Coral Hollow - This hollow is inscribed with coral numbers that read 126.

When you talk to the Coral Hollow, you get this message: The Statue whispers in your mind, "You must hear my story before choosing."