Varriel

Varriel was a Red Wizard of Thay in Waterdeep in 1479 DR.

History
In 1479 DR, Varriel discovered notes about a necromancer's laboratory inside Undermountain. Not suited for adventure, she hired Aizel Treemaine, a female elf wizard, to explore on her behalf. However, Aizel joined the doomed Rutherford Urmbrusk's party and disappeared. Soon after, some undead with a symbol associated with the laboratory started wandering the dungeon. So Varriel decided to hire a second adventuring party in order to uncover the matter.

Behind the Scenes
The adventure did not specify if Varriel was a Red Wizard exile with good intentions or an evil minion of Szass Tam.