Snape

war with Voldemort. Snape is on the side of Hogwarts, although everyone thinks that he is for Voldemort. The Dark Lord called Snape to kill him in order to gain control of the wand. And Hermione Ron and Harry saw Voldemort killing Snape. When Voldemort left, they entered the room and Harry sat next to Snape, clutching his neck wound. Snape, looking at Harry, quietly said
you have her eyes
Then a figure in a hooded robe appeared in the room. The figure also sat down next to Snape and said to Harry, Ron, and Hermione.
Go save Hogwarts, I'll help him.
The boys hesitated, but went anyway. The stranger took a vial from her bag and, after adding a few drops, the wound healed. The stranger stood up and walked in the direction where Hermione, Ron, and Harry had gone. Snape came to his senses a couple of minutes later, jumped up, and walked in the same direction, coming out into the hall where all of Hogwarts was, and in the middle stood Harry, the stranger, and Voldemort. The stranger stood next to Harry, helping him with her power to deal with the Dark Lord. Snape stood next to them and, casting the Expillarmus spell, added his own power, and ultimately, they defeated the Dark Lord. The stranger removed her hood, revealing herself to be Lily Potter, Snape's first and last love and Potter's mother.

you. Lily Potter
Harry Potter and Snape bot