Follows the mother with each other.

Dragons gain new powers as they grow older. At each stage of growth, they gain a new ability, culminating with the twelth ability when they reach old age. They are born with the ability to breathe void fluid and secrete it from their tails.

By the age of one thousand, they will have the ability to nullify a person at will, once a year. By the age of five thousand, they will have the ability to create a wall of void about themselves.

By the age of nine thousand, they will be completely unable to be affected by moderate magicks. By the age of twelve thousand, they will be impervious to magical or divine forms of nullifying energies. By fifteen thousand, they will be immune to poisons, magical or mundane or divine.

By the time they are twenty thousand years old, they are able to grant another being one of their scales, allowing them to have an aura of void or a source of void energy. By the age of twenty five thousand, they can control ambient void. By thirty thousand, they can summon a cloud of void.

By the age of forty thousand, they are gain a venomous bite. By sixty thousand, they can see on the void scale and the magical scale, & finally, by the age of seventy five thousand, any void dragon can gate into the Void, briefly.

Void dragons, like most dragons, are solitary beings, for the most part, only coming together under the reign of a greater dragon. They are silent, patient beings that serve the whims of their formless masters.