How to get there: Southeast of Pioneeria, near (772, 388). Look for the signed cave and its lamp.
First floor: nine Blue Wizards, Combat 60. Second floor: eight High Wizards, Combat 75, who can mend nearby allies. Third floor: six Azure Archmages, Combat 95; each can call two apprentices once below half health.
Fourth floor: an Azure Grandmaster, Combat 120. At 70% and 35% health he calls Archmages, with at most two fighting alongside him. Helpers give no separate loot or XP. Each cave has an independent twenty-minute boss respawn. Three prepared adventurers recommended.
The western ladder returns to the previous floor or surface; the eastern shaft descends. Arrivals are in the quiet southern gallery. Bring food and magical light: fires cannot be lit underground. Interrupt charged spells and healing chants.