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Harry Potter and the Olympian Legacy by AblazingLetter371
Fandoms: Harry Potter - J. K. Rowling, Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan
11 Aug 2026
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Summary
The door of Number Twelve, Grimmauld Place opened slowly.
A young man stood on the doorstep.
He wore robes unlike anything Harry had ever seen, his wand resting at his side, his expression calm and unreadable—like a wave before it falls.
"My name is Percy Jackson," he said. "Dumbledore invited me.”
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Harry Potter has faced dark wizards, dangerous creatures, and impossible odds.
But he has never met a wizard like Percy Jackson.
Arriving from America, Percy brings secrets that seem endless. He wields magic Harry has never encountered, carries scars from a war no one in Britain knows about, and senses danger before anyone else can see it.
As Harry begins his fifth year at Hogwarts, the wizarding world is divided. The Ministry denies Voldemort’s return, a new authority tightens its grip on Hogwarts, and darkness begins to spread.
Behind Percy’s calm exterior lies a hidden legacy, an ancient history, and truths that could change everything Harry thought he knew about magic.
Because some legends were never myths.
They were history.
And now, that history has arrived at Hogwarts.