The Last Bell of Kesreth

With the Ashen Horde's siege towers closing on the gates, seventeen-year-old apprentice bell-founder Senna Vantar has seven days to finish the legendary Vigil Bell — the only signal that can lead forty thousand people to a hidden escape route only her dying master remembers. But as molten bronze races against the clock, Senna uncovers a conspiracy that turns everything she believes about the siege inside out, and learns that ringing that bell may cost a truth she's not ready to face.