Of Blood & Echoes. Sigil Saga - Taylor Sage

Avery Grant never asked to inherit a legacy written in blood.

When an ancient artifact resurfaces in Salem, she discovers she's bound to a centuries‑old covenant-and to the Stream, a living current of magic that never forgets its debts.

As dormant sigils awaken and monsters slip through forgotten doors, Avery must uncover the truth of her bloodline before the Stream claims its due. Because some doors should never be opened-and some legacies refuse to stay buried.