Cassiopeia Walburga Black had a secret. It is a secret that only two people in the wizarding world knew, and that was her parents. One evening, that was all going to change. The Fates, wanting to unite two worlds, decided to reveal that secret to the wizarding world. By making them watch her life. Regulus and Sirius Black are going to learn their little sister isn't who they think she is. They are all going to find out that Greek mythology is real. They are going to find out that Cassiopeia is part of that world. They are going to find out that Cassiopeia is an embodiment of blood and the stars... They are going to find out that Cassiopeia Black is the daughter of Ares. OC Black x Percy Jackson.

Elestara Lyra Black was everything a proper pureblood girl should be: elegant, cunning, coldly brilliant, and thoroughly unimpressed by fame or foolishness. She walked like a queen-in-waiting and proudly bore her mother's maiden name. On top of that, she was also Draco's twin sister. And Harry Potter? He was everything she was raised to despise: reckless and impulsive, too brave for his own good, and determined to get her to notice him. They were Lily and James in the next life, only Lily was a girl with hair the color of starlight and eyes the color of frost. She was a star, Harry's star, and most of all, a firecracker. HIGHEST RANKINGS 20250516 #1 in Daphne 20250522 #1 in Slytherin 20250522 #1 in Gryffindor 20250522 #1 in Voldemort 20250525 #1 in Narcissa 20250608 #1 in Regulus 20250621 #1 in Malfoy 20250628 #1 in Hogwarts

𝔚𝔥𝔢𝔫 𝔯𝔬𝔬𝔱 𝔞𝔫𝔡 𝔴𝔞𝔫𝔡 𝔦𝔫 𝔟𝔩𝔬𝔬𝔡 𝔞𝔩𝔦𝔤𝔫, 𝔄 𝔠𝔥𝔦𝔩𝔡 𝔬𝔣 𝔢𝔞𝔯𝔱𝔥 𝔰𝔥𝔞𝔩𝔩 𝔠𝔯𝔬𝔰𝔰 𝔱𝔥𝔢 𝔩𝔦𝔫𝔢. 𝔚𝔦𝔱𝔥 𝔰𝔢𝔞 𝔟𝔢𝔰𝔦𝔡𝔢 𝔞𝔫𝔡 𝔰𝔱𝔞𝔯𝔰 𝔞𝔟𝔬𝔳𝔢, 𝔖𝔥𝔢'𝔩𝔩 𝔯𝔦𝔰𝔢 𝔱𝔥𝔯𝔬𝔲𝔤𝔥 𝔭𝔞𝔦𝔫, 𝔞𝔫𝔡 𝔣𝔦𝔤𝔥𝔱 𝔴𝔦𝔱𝔥 𝔩𝔬𝔳𝔢. 𝔅𝔬𝔲𝔫𝔡 𝔟𝔶 𝔣𝔞𝔱𝔢, 𝔶𝔢𝔱 𝔣𝔯𝔢𝔢 𝔟𝔶 𝔠𝔥𝔬𝔦𝔠𝔢- 𝔗𝔥𝔢 𝔴𝔬𝔯𝔩𝔡 𝔰𝔥𝔞𝔩𝔩 𝔱𝔯𝔢𝔪𝔟𝔩𝔢 𝔞𝔱 𝔥𝔢𝔯 𝔳𝔬𝔦𝔠𝔢. "Earth and nature are not weak, you'll find out what happens if you decide to destroy them." - (Name) A. Black xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Harry Potter and the Philosopher Stone: [Mischief Managed] Percy Jackson and the Lightning Thief: [Quest Commenced] Harry Potter and The Chamber of Secrets: [Mischief Managed] Percy Jackson and The Sea of Monsters: [Quest Commenced] I do not own Harry Potter or PJO chronicles, they belong to their respective authors- JK Rowling and Rick Riordan. After reading this, proceed to Book 2; Retrouvailles: Black Dahlia