How has Halaster “The Mad Mage” Blackcloak stayed alive for 1200 years?

The Ruins of Undermountain box set is considered one of the greatest mega dungeons of all time

When a magic user registers with the Watchful Order of Magists would they do so at Blackstaff Tower?

Do you think Halaster is a countertenor, tenor, baritone, or bass?

I noticed that Elminster is the current leader of the City Watch of Waterdeep…

How long does it take Halaster to create a new gate in Undermountain?

I’m having a hell of a time finding any information about an actual prison or dungeon in Waterdeep