The 12

The Twelve were a secret cult within the city of Dexicos that had been working to achieve the restoration of their Titan master Hyperion. This cult had been puppeteering the events in Dexicos, including the civil war between the Faen and the Vallotis. Their plans currently seem to resolve around Leoven somehow, as prophecies emerge linking the destruction of the city and her.
They seemed to attempt to manipulate Leoven through the use of dreams and by having Khantos, Arvain and Sofia persuade her to certain courses of action. However, Khantos and Arvain betrayed the Twelve and Khantos revealed the Twelve's conspiracy to Leoven and the rest of the Primal Seven. Meanwhile Arvain had killed Sofia and fled, leaving a note saying he couldn't go through with betraying them, and not to trust Khantos Evergreen.
Now it seems Leoven may be on a warpath against this cult, for all they've done to her. However she doesn't know who to trust, especially as only eight members have been revealed. Suspicion of any current groups is high, especially as the Twelve has shown a willingness to work alongside the more criminal groups within the city and possibly The Owl and Spear.