RITUALS
Necromancy, Thaumaturgy and Abyss Mysticism do not have elder powers or techniques. Instead, practitioners of these arts gain access to mystical rituals specific to their art. Rituals are formulaic and require a significant amount of time, as well as specialized implements and ingredients. You cannot buy a specific ritual until you have purchased the appropriate dot of Obtenebration/ Necromancy/ Thaumaturgy to support that ritual- for example, learning a level 4 Thaumaturgy ritual requires you already possess 4 dots in your primary Thaumaturgy path. In addition, you must purchase one ritual of each level before you are able to purchase a ritual at the next-higher level. For example, in order to purchase a level 2 ritual, an Abyss Mystic must already possess at least one level 1 ritual.
The cost to purchase a ritual is equal to the ritual's level times two. Therefore, a level 3 ritual costs 6 XP to purchase. A Thaumaturgist or Necromancer cannot learn more rituals than dots of Thaumaturgy/ Necromancy that she currently possesses. For example, Marianna Giovanni possesses 4 dots in the Sepulchre Path, her primary path, as well as 3 dots in the Bone Path, and 2 dots in the Ash Path. Thus, she can learn nine Necromancy rituals. An Abyss Mystic is not limited in the number of rituals she may purchase.