Once upon a time, deep within the world of Embryon, there was a loud and lively city called Cellula, where proteins rushed about, vesicles drifted and everything moved in perfect harmony. Everything – except Cromixi, a colorful creature trapped in sleep by an ancient spell. Who cast it, and why? And more importantly: could the spell be broken? Join the quest and discover the magic of epigenetics! Together, we may awaken Cromixi – and save Cellula from fading into silence.