Disused Furnace
Disused Furnace is a Corrupted Area that can be found in The Crematorium.
Boss is Curator Miem (unique Undying Incinerator). Casts a Firestorm that follows you, like a self-damaging Burning Shrine.
Vaal Vessel: "A ring. Plated, not even solid silver. That's all I took. Now I'm stuff full of gems and destined for the block. For palming a wretched, half-crown ring."