Detective Kirkland and the Case of the Lonesome Ferry Ghost

Arthur Kirkland is a wizard and detective in the city of Hetalia, who often takes bizarre cases. One day he decides to take a normal-sounding case as a favor which quickly turns into anything other. Will he be able to close this case before his friend's cousin becomes the next victim? And why does the other wizard Lukas keep trying to get in his way? Sequel to the other story.