Responses
I think it's like those type of things were the vampire turns a human to become one. The vampire that made the human into a vampire has a link with the person he/she bit.
The first thought that came to my mind was that they were some sort of familiars, but what you said can be it too. We can only wait for the next chapters to find out for sure.
I liked how he thought of making the neighborhood safe for his little food. ::cute:
But that ''Link'', what is it? I'm hooked. <3