you can make it on a wish (if you want to)
Status
Summary
On the day of Regulus' coronation, his banished uncle comes back to take the throne. His father is killed, but not before he gets the chance to tell his son of the artifact that could save them all - an artifact that Sirius, Regulus' runaway older brother, conveniently took with him when he left. Mermaid!AU, for Grace.