Harry Potter and the Silent Witch

This is the first cross-dimensional fanfiction crossover between the Harry Potter series and Secrets of the Silent Witch. Monica Everett, the Silent Witch, one of the Seven Sages of the Lidil Kingdom and the personal guard of the Second Prince, is thrown into another world by an accident. When she opens her eyes, she finds herself at Platform Nine and Three-Quarters, with only her talking black cat Nero by her side. She knows nothing about Hogwarts. Her name isn't on the list of new students. She can cast magic without spells. She is afraid to speak in front of people, so her power is silent.

When an out-of-control ceiling spell comes crashing down during the Sorting Ceremony, she catches it with a soundless barrier. The Great Hall falls silent. Dumbledore's eyes gleam behind his glasses, while a man in a purple turban watches her from the corner with a complicated expression.

The Sorting Hat lingers on her head for a long time before finally shouting, "Gryffindor!"

And so Monica becomes a Gryffindor, sharing a room with the bushy-haired know-it-all Hermione and becoming friends with Harry, the boy with a lightning-shaped scar on his forehead...