Echo

She's a dead girl, he's a living boy. Meet the mysterious and sometimes sarcastic ghost girl known as Echo, for as long as she can remember she's been stuck in the void or haunting a mad scientist's castle. Everything changes for her when the scientist's assistant sees and befriends Echo, trying to convince the rest of Tekkitopia that she's real. When an experiment goes wrong and the world as they know it being consumed by darkness, it's a race against time to save everything and everyone they love. But what is there to lose if you're already dead?...