Prologue: On a Dark and Stormy Night is the first prologue chapter of Professor Layton vs. Phoenix Wright: Ace Attorney, as well as the first adventure chapter in the game. It introduces Professor Hershel Layton as a protagonist and Luke Triton as his assistant, as well as introducing the important character of Espella Cantabella. This chapter features orchestral arrangements of theme music from Professor Layton and the Curious Village.