The Wizard Warrens is the name given to the vast labyrinth of of chambers and corridors that exist beneath the streets and canals of Glantri City. These warrens have an untold number of entrances, most of the warded or guarded as they are still being used by the various wizards and arcane cabals of the city. Many more entrances are lost to time, forgotten walled off sections of a building's basement or a long abandoned tunnel of the sewers that lead into the depths. These warrens spread out under the entire walled section of the city and into the suburbs beyond. Their depth is unknown but it is rumored to go so deep as to have connections to the far and distance Shadowlands. Many adventurers, mostly wizards seeking lore and their companions that travel with them, plumb the depths of the Wizard Warrens. Many don't return.