For our hero Skully, Remembrance day comes crashing down as humans invade from the kingdom above. Instead of raiding the Underworld for treasures, they kidnap the Aftervale's elder skeleton Elzedon and go after the very magic that kindles the spirits of the dead, the Blue Flame. Without the Blue Flame, there is no Aftervale nor existence beyond death.
Jump, slash and flap your way through the Underworld together with your best bat friend Imber! It's up to you to stop the human invasion, save the Elder, protect the Blue Flame and confront Skully's past life.