Aquila saw Severus when she was on the way to Great Hall at seven am that morning.
"Morning Severus!"
"Morning Aquila!" He replied her with his sweet baritone voice.
"Do you know Lily ,Lily Potter?"
"Yes I knew her , she was my best friend before I said that word to her and she died three years ago. What do you want?" He asked her in a shaking voice.
"You know , before Lily Potter married to James Potter, her name was Lily Evans ... and have you noticed the surname between us? Both of our surnames is Evans!"
"Really? I haven't noticed that."
"Lily was my sister actually. Well... more like half sister. You see , we have different fathers. My father is Orion Black."
"I'm sorry but I'm not going to take this conversation any further" Snape said "the death of Lily was a tragic and her only sister was the disgusting Dursley women you can be related" he said.
"Tell me it's not true" his voice started to shake and he was starting to get angry.
"I am not lying!" Her eyes are now full of tears.
"Are you somehow related to Sirius Black then ?" ,
"that scumbag!"
His voice started to raise in temper and anger but he didn't realize.
"I LOVED LILY!" he screamed "YOU DONT UNDERSTAND THE PAIN I GET EVERY DAY OF MISSING HER!" he added "AND I'N STRUGGLING NOW YOUR HERE! " he said his voice so loud now it echoed through the hall castle "now your are here I've been blind by love again" he said his voice slightly calmer .
"Yes I am related to him! He is my half brother as is Regulus ! You know what ? I am going back to my chamber!" She turned into an small orange and white cat and ran back to her chamber.