One Body Two Sisters|| Secrets of the Silent Witch|| Fan Made

Outer world magic. Three lives left. One final silence.
Monica Everett is known across the continent as the Silent Witch-a prodigy of unchanted magic, a member of the Seven Sages, and a girl so shy she once slammed a door in a noble's face. But hidden deep in the mountains, far from the academy halls and whispered legends, Monica lives a quiet life with her twin sister, Celeste.
Identical in face but not in fate, Celeste bears a secret of her own: eyes of two blues-one dark, one light-and a soul bound to Monica by a forbidden power known only to them.
They are the Silent Mirror Twins, wielders of Silent Execution-a spell so powerful it erases existence itself. But each use comes at a cost, tracked by a mysterious artifact that pulses with the number of lives they have left.
When Louis Miller arrives with a request to guard a prince at Serendia Academy, the twins know their peaceful days are over. Together with their clever gray cat Momo, who speaks only to them and knows far too much, Monica and Celeste must return to a world that fears their silence-and may one day demand their sacrifice.
Bound by magic, memory, and a promise made in childhood, the twins step into danger once more.
"If we must live, we live together. If we must fight, we fight together."