Necromancey Stories

what happens when one Albus dumbledoor the hedmaster of hogwarts and supreme mugwump finds out there is anevidence of his dirty past that he soo desperetly tried to bury and the said evidence is very much alive so basically dumbles find out he has an grandson and powerfull one at that son of poesidon (NOT PERCY JACKSON!!!) dumbles x grindelwald grandson of dumbles said grandson is dark (NOT EVIL!!!)