Starting with Three Unforgivable Curses

The pale morning light filters into a tiny, cramped cellar room. Eleven-year-old Dylan Hawkwood glares at a letter on the table. Moments ago, an owl flew through the window, delivering this strange, familiar envelope bearing the crest of Hogwarts.
His heart pounds as memories of a past life flood back, confirming the unbelievable: he's in the Harry Potter universe. But his excitement is quickly overshadowed by terror at the thought of a world where wizards wield powerful, mind-controlling, and even deadly magic with a word.
Just as he grapples with this reality, a mysterious interface appears before his eyes. A 'New Student Starter Pack' is revealed, and upon opening it, four golden lights flash. Three of them transform into swirling black mist, imprinting upon his mind the knowledge of three full-level spells: Crucio, Avada Kedavra, and Imperio.
He has been gifted the Unforgivable Curses.
The fourth light reveals a small, black, lynx-like creature named Umbra. Now, armed with forbidden magic and an unusual pet, Dylan must prepare to enter a world he knows is filled with danger, all while hiding the terrifying truth of his power from everyone, including his loving Muggle parents.
