Beneath the city there are buried the ruins of an earlier version of the city of Zaaryx, populated by flesh-eating Ghouls and the mysterious reptilian Crocaryx.
It appears mainly in Lone Wolf 9: The Cauldron of Terror, in which Lone Wolf has to find a way to get into the cauldron which leads down into the ruins, where one of the Lorestones is hidden. He has to do this with or without the support of the Council. At the time, Anari is at war, with three separate armies - two from the Darklands and another from Vassagonia - converging on Tahou. The gamebook culminates in a siege and battle in the city, in which Lone Wolf must defeat Zakhan Kimah to secure a temporary victory for Anari before allied forces arrive.
Anari is again attacked by the Darklords during the period of Lone Wolf's absence, while he is in the Dazhiarn Plane.
It is therefore appropriate that Tahou is the only major city in the republic.