House Tarkanan is a pseudo-dragonmarked house based in Sharn consisting mostly of bearers of aberrant dragonmarks. The House takes its name from Lord Halas Tarkanan who, along with the Lady of the Plague, raised up those with aberrant dragonmarks to challenge the dragonmarked houses during the War of the Mark. Nearly wiped out, aberrant marks were rare and relatively weak, but over the last decade have been returning in greater numbers and some marks now wield remarkable power. In defiance of the Twelve, House Tarkanan was formed by Thora Tavin, now Thora Tarkanan in 990 YK. House Tarkanan’s objective is to search for those who have aberrant marks, recruit them and train them to use their powers.

House Tarkanan accepts anyone who has an aberrant dragonmark. Tarkanan has a reputation for assassination, thievery and other unlawful deeds. Those who join will either be placed into the business side of the House or the assassination and theft side. The business side deals with general administration such as contracts and accounting.

In Throneport, House Tarkanan and the Boromar Clan have split the criminal underworld between them, with Tarkanan known to perform the more dangerous and deadly sorts of schemes.