Pockets of Wyrm-worshipers meet in secluded fens and the basements of slums throughout Telgard. Although the Church denys their power, they are more widespread and have more influence then is believed. Evil priests worship H'roathyll, the Wyrm, who is rumored to be the father of the Dragons and the Dark One. They learn magic for dark purposes and train as assasins. Funding comes from organized crime. Diguise is an essential skill for these believers, as is a small weapon proficiency. Cult doctrine states that members must be armed at all times and ready to aid the Dark One when he returns.

The cult is ruled by a Council of Thirteen, but unlike the Dark Order do not have a Matriarch or Patriarch, though the two organizations are remarkably similar. The obedience of members of the Cult is legendary; learned cult members will reveal nothing even under threat of execution, for they fear the power of the Wyrm more. However, some of the more zealous members of the Church of Telgard have discovered that a Cultist may be tortured, such that the pain caused makes him forget his fear of the Wyrm. While the Church officially frowns on torture, some inquisitors would rather suffer the consequences and that the price is worth digging out the Wyrm.

The largest presence of the cult seems to be in Korresh; not because the humans are more evil, but because they are more successful at trade. After that, the cult's strongest presence is in Mirg, where they often corrupt worshippers of the Serpent. It is not known exactly how widespread the Cult is; the Church regularly stamps out nests of cultists, but more always seem to spring up.