In reading this chapter it provides the ground work for the destruction of Severus Snape and I certainly hope that you provide a clear reason why YOUR Albus Dumbledore still has faith in him from the great beyond. I like your introduction of Dian and I hope that you continue this story for a bit, showing her to be a part of the story. I also would hope that you introduce the other two children, as well. Your stories are always filled with political intrigue and while this one hasn't, it hasn't disappointed in the direction you've taken it, thus far.
Geovanni Luciano