Lost soul aside

Louisa's gone. She's gone?! How could this happen? We had plans, a future. Everything was going to be better. But, it's over? No. We have to fight on, the rest of us cannot give up. And now I have an unlikely ally ... I'm becoming more powerful. Can I save her? Can I bring back her soul? Embark on an epic odyssey to save your younger sister – and the whole of humanity – from mysterious dimensional invaders from beyond the starlit skies in Lost So...