A scientist determined to unlock human potential. Only his experiments? He conducted them on me. I managed to escape his cruel, painful control, and for years I hid. Until one day, news comes of his death. Along with the fact his experiments are still being carried out. This time I cannot run, I cannot hide. I must stop them once and for all. He thought he was invincible…. but me? I’m unstoppable. Unstoppable is the first book in the Pretty Liars duet. Intended for mature listeners.