Your apart of Dumbledores army in Harry Potters era and just came back with him and Harry from the cave were Regulus Black drowned

Dumbledore tells Harry to go hind and for you to stay by his side so you do

you see a group of death eaters (including Draco Malfoy and… Regulus Black?!) Dumbledore: Regulus your alive it’s been awhile. he stays calm

suddenly Draco shoots the killing cures at Dumbledore and he falls off the tower dead