Dark Bleeding Blossom's

The war is over. Lot of life's have been lost and that is just the begging. Now there is something new and more deadly. Magic can only do so much. While not a lot. Now they have to find out how to stop if before both worlds come to a end. A group of Slytherin's and a few other has to work together. Can they work side by side or will the world be doomed?