What is a djinni? The other four main spirits were previously other things; an imp is a mischievous child who died young; a foliot is a mischievous child who died old; an afrit is the incarnation of fire, while the marid is of water. And again, it is asked: But what is the djinni? It is hard to say. There are those who live on this earth, and those who lived in the Other Place.
The one is the spirit of those who have vanished, but still long for the earth. They act during the night, disappearing with the first light of dawn. They control the ability to make themselves invisible and change shape; however, they are unable to cast spells.
Many of these earthen spirits are believed to be the cause of manias for some lunatics. However, this is incorrect. They can no more possess a man than they can protect themselves from their master without his true name.
The other is that of those who have vanished but do not care what happens. They are content to drift about in the Other Place, hoping they will not be summoned too many times. In this fourth installment we will most definitely speak of both types. I ask only one thing: if you read past this poor prologue, continue unto the end.
--The Creator