Thirteenth Circle

Beneath the city lies a secret the world was never meant to see.Lena Marlowe thought she was just another high school senior—until a cryptic heirloom unlocks the hidden passage to the Thirteenth Circle, a forgotten realm of magic, riddles, and dangerous creatures.But the Circle is crumbling. A dark figure named Riven is bent on seizing its power, threatening both the underworld and the city above....