The Hellpack are a group of Hellfire Wyverns, Horses and Hellhorses that live slightly separated from the rest of the flock. They inhabit an old fortress, called the Hellfort, that they found in the jungles on the slopes of a volcano. There is a single White dragon that resides with them, to tend to their injuries.
They're grumpy, temperamental and prone to random bursts of violence. They're also engaged in an on-going dispute with the forces of an unknown enemy, who have already managed to cripple one of their members. The main AnselaJonla flock appreciates the Hellpack guarding their border in that direction, and tolerates (or goes to join, in the case of the Blacks) the occasional burst of screaming combat as one of the prices of that.
There are, at present, four main lineages in the Hellpack.