Bioshifter
Natalie Maher & Thundamoo
Hannah has a routine. Wake up, take a shower, go to school, go to work, come home, and pass out. It's a perfectly normal routine for a perfectly normal girl who does not have to remember how her limbs work every morning because of haunting nightmares of being a very different creature in a very different world. But that's all she thinks they are—nightmares—until one night they're all too lucid, and her body on Earth starts to change. Slowly, Hannah's humanity starts to slip away. A mix of urban and traditional fantasy, Bioshifter is a story in two worlds, with magic leaking in from one to the other. It's a story about love, self-acceptance, neurodivergency, and a whole lot of trauma — structured around transmutative body-horror progression where Hannah's Earth-body mutates and her dream-world arachnid self masters spatial sense and Transmutation magic under a terrifying Goddess.
Progression: Transmutative Body-Horror & Dual-World Magic Progression. Central advancement is Hannah's gradual transmutation from human to monstrous bio-shifter: Earth-body slowly mutates (limbs, spatial sense, eyes grown via Transmutation magic) while dream-world spider-form masters Transmutation and world-tree magic leaking between Earth and the Mother Tree/Tree of Souls. Magic spreads to friends whether they like it or not, forcing confrontation with the Goddess's demands. Each volume escalates transmutation stages, spatial-sense mastery, and Earth-magic integration, framed as a slow-burn transformation process. Reviewers tag as progressionfantasy and note 'slowly-mutating body' and 'magic continues to spread' as core gates. World Tree tiers and Crafted city Manumit provide later-stage geopolitical progression. Verified via Goodreads series descriptions for all three volumes and reviewer tag 'progressionfantasy'.
Goodreads
