never let go

Regulus Arctaturus Black, a name known by all pure bloods. Slytherin, Coward, Death eater. They all thought they had him figured out. But he was tired of it, tired of acting like the perfect son, tired of serving a madman with values he definitely did not agree with, tired of people acting like they knew him when in reality no one did. No one except her. Y/n Zabine.
Y/n and Regulus: The it couple of Slytherin. They were hopelessly devoted to each other, attached at the hip and everyone knew it. So much so that there was no way on earth Y/n was letting Regulus go after that locket by himself. If he was going down, she would go with him.
What happens when 2 of Voldemorts death eaters try to steal his locket? Will it make a difference? Will they make it out alive? Or will they both die attempting to redeem themselves by saving the wizarding world?

TW: character death, drowning

A/N this going to be very short probably just two chapters