Fury's Heart

Fury’s Heart, also known as Carceri, was the home of the destructive deities Auril, Malar, Talos, and Umberlee (Deities of Fury), located below Clangor and the Supreme Throne but above Hammergrim in the cosmology. After the Spellplague it merged with the House of Nature to form the Deep Wilds, except for Talos's portion, which the aspect of Gruumsh took with him to Nishrek.

Fury’s Heart is an enormous expanse of wild terrain that stretches from the frigid tundra of Auril’s Winter’s Hall across Malar’s Land of the Hunt, to the distant mountain range Pandesmos, where in the Towers of Ruin resides Talos the Destroyer, and across the length, breadth and depth of the Blood Sea, home of Umberlee, violent weather is the norm throughout the plane. The wind is rarely below severe and storms are nearly constant.

Structure
It is commonly compared to the Barrens of Doom and Despair, home to the likes of Bane, Beshaba, Loviatar, and Talona. Both planes are filled by desolate landscapes, little life and no redeeming qualities. Fury’s Heart is a turmoil of storms, howling winds, crashing waves, biting blizzards and wild beasts. Where the Barrens refuses to support life, Fury’s Heart actively seeks to crush it.