Shadows on the Walls

It had been decades since monsters prowled the lands. Now, they're back. And Finn must finish what his father started, no matter the cost. Assemble the party and head into the dungeon, the dark lord guarding it will perish with the help of his friends and comrades. It seems so straight forward, but why is everything going wrong the moment they step into the dungeon?One thing is certain though, Finn and his company will triumph or die trying. Will they succeed?