WOW's KLZ mission' is an underground well in the wine cellar? If not, where is it?

This task requires players to use violet divination crystals near the underground water source of Medivh's wine cellar, and then call back the exorcist Otto Ruth outside Karazhan.

First, players need to find a place to enter the cellar. There are two entrances to the cellar next to Karazhan Gate.

After going in, walk all the way, you can see a piece of water inside, and then go back to a well.

Story background (Blackstone disaster)

After the invasion of natural disasters, the continent of Azeroth was devastated, and the Fiwood forest became a dead silence. The rotting bodies of the Tirisfa rangers who had already died but stood up again were filled with thick fog all day, and the desert of Cyrus was undercurrent. The kingdom of Lordaeron was destroyed, and Illidan betrayed the night elves and was exiled to Outland.

Former Prince Arthas finally ascended the frozen throne and became Northrend's new Lich King. The war seems to have subsided temporarily, because the fragile agreement reached by the warring tribes and alliances seems to have been gradually forgotten.