Kindrak

Kindrak was the powerful wizard who was able to lead what was left of civilization after the bloody Shavaris Wars and seal the underdark off from the Toppside. Due to his old age by the time he eventually casted the ritual to seal off the underdark he was unable to completely seal it off leaving certain holes in the barrier allowing for monsters to occasionally stumble into the underdark. The ritual was eventually completed by the drow wizard Zavrand.

Kindrak

Toppside: A World in the Dark GrantDawson