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1. The Daughter Of The Stars And Blood by Prince_Mochi

   Fandoms: Percy Jackson and the Olympians - Rick Riordan, Harry Potter - J. K. Rowling  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   15 Apr 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Percy Jackson/Original Female Character(s)
   • Percy Jackson
   • Clarisse La Rue
   • Annabeth Chase (Percy Jackson)
   • Grover Underwood
   • Ares (Percy Jackson)
   • Original Child(ren) of Ares (Percy Jackson)
   • Thalia Grace (Percy Jackson)
   • Nico di Angelo
   • The Olympians (Percy Jackson)
   • Orion Black
   • Walburga Black
   • Sirius Black
   • Regulus Black
   • Narcissa Black Malfoy
   • Andromeda Black Tonks
   • Bellatrix Black Lestrange
   • Cygnus Black III | Walburga Black's Brother
   • Druella Rosier Black
   • Arcturus Black III | Sirius Black's Grandfather
   • Original Black Family Characters (Harry Potter)
   • Good Parent Ares (Percy Jackson)
   • Crossover
   • Secret Relationship
   • Original Character(s)
   • Slytherin
   • French Black Family (Harry Potter)
   • Action/Adventure

   Summary

   Cassiopeia Walburga Black had a secret. Only Two people in the wizarding world knew her secret her parents. Soon that was all going to change when the Fates decide to show her life to the wizarding world. Revealing her secret to everyone. 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 Black is the daughter of Ares.

   Language:

   English

   Words:

   77,623

   Chapters:

   21/?

   Comments:

   22

   Kudos:

   179

   Bookmarks:

   72

   Hits:

   8,679