Before the assassin. Before the mask. There was a promise made in blood. Natalya has always been careful—silent steps, hidden magic, a sister to protect. But in the city of Serrana, danger cloaks itself in civility and strikes behind closed doors. When Piper vanishes, Natalya must abandon the guild that's shaped her to rescue the only family she has left. Armed with her magic daggers and a cursed ring, the fae will stop at nothing to see Piper freed, even if it means descending into darkness alone. For Natalya, this is the moment she stops running. For her enemies, it's the moment she becomes the Blade. Promise is a dark, lyrical novella about sisterhood, sacrifice, and seizing inner power rather than asking for permission. It’s the soul-gripping prelude to Phantom, Book One of the Heir of Lilith trilogy.