The White Well
"Here, a prison of the Blue Kingdom, reserved for punishment of the erroneous dead."
The White Well is the frozen black hole of the Blue Kingdom. The Well consists of two parts: the Stone-Faced Court and Wellmouth.
The Stone-Faced Court
"Half-ziggurat, half-fortress, the Court is where spirits go to face judgement before they meet their end. A meek little city has sprung up around it almost by default."
The Stone-Faced Court is a massive ziggurat built near the White Well. This is where the dead are judged by Blue Kingdom's administration. Due to the large number of spirits and the slow nature of the process, the waiting line to enter the court has become so long that a town named Urd was established around it.
Those who are judged as dead are passed on to Death's Door; those that are judged to be Failed Dead are sentenced to be thrown into the Well. Failed Dead are typically people who've dabbled in immortality, since their attempts have altered their spirits and souls.
Yoked beings are not permitted to enter the Court. This is most certainly not an effort to hide corruption within...
The Graven

The Court is managed by the Graven. These jewelled individuals have had all flesh above their collarbone carved out, and their exposed skulls adorned with gemstones. Their rank determines the number and size of the jewels in their skulls.
Despite their deathly appearance, the Graven are not actually dead; the Sapphir'd King gave them an exemption from the law of death as a reward for their service.
Just because the Graven aren't dead doesn't mean they're in great shape, though; their work is notoriously mentally taxing. Many that aren't satisfied with their position grow their faces back, then leave the Blue Kingdom to "enjoy life", much to the bafflement of the other Graven.
Wellmouth
"A smattering of dark cottages at the White Well's edge. It is surrounded by endless rows of tumbled and broken statues, mere specks against the snow."
Wellmouth is a small village built at the very edge of the White Well. It is infested with spiders, both Sorrow-spiders and the more common variant.
The village is inhabited by a group of old women called the Widows. Led by the impossibly colossal Matronly Relict, their role are to throw the Failed Dead into the Well. They are known to be very fierce, as even the Graven fear them. Those who seek to linger or even live at Wellmouth should ask for their permission.
Because the White Well is frozen, some Failed Dead can just climb the Well's depth to escape. To prevent their escape, the Spider-Sweeper role is created for the Yoked. The Spider-Sweeper purpose is to descent into the Well, then "sweep" any Failed Dead that are climbing the Well using a broomstick. Unfortunately this role has been forgotten by both the Widows and the Graven.