A fire-themed mining dungeon of lava-filled caverns (classic 'Sol A'), where fire goblins and the gnomish Solusek Mining Company share an uneasy alliance. A comparatively linear layout makes it a reliable source of mid-level gear and tradeskill materials. It adjoins Nagafen's Lair (Sol B), where the red dragon resides.
Fire mobs deal elevated damage and cast damaging fire spells; over-pulling toward the Sol B connection can drag in far higher-level content.
Bring fire-resist gear to blunt caster damage, and use the linear layout to camp goblin/gnome pulls cleanly for mid-level loot and tradeskill mats.
Zone data is early and community-sourced — confirm details in-game.