Onyx Door - Kenneth A Baldwin - Bog

Luella Winthrop doesn't know whom she can trust. Her heart is divided, and difficult truths wait for her at every turn. With even her magic beyond her reach, isolation could not have come at a worse time. Her goal is as simple as it is difficult: escape those who wish her harm and save her true friends. With magical doorways sealed, scarce resources, and a city trying to hunt her, she will have to dig deep within herself to discover the strength to overcome mortal and otherworldly foes alike.