The Children of Frevallion

Seven worlds. One crumbling connection.
Margot Peregrine never thought she'd have to bear the weight of an ancient legacy, let alone the responsibility of protecting the fragile bond between seven worlds. But when the Penumbra-a mysterious force holding these worlds together-begins to collapse, she's thrust into a hidden war fought in the shadows. Her family is at the heart of it all, bound by secrets that could destroy everything if they fall into the wrong hands. With her siblings Frida and Miles by her side, Margot must navigate her newfound powers, outrun those who hunt them, and uncover the truth behind the Vigilum Aleronis before the portals between worlds close for good.
The fate of the universe rests in the hands of a girl who never asked to be its protector.