The Black Rose

Welcome to the continent of Avalor! It's the olden times without much technology and rustic little towns scattered around. Most towns suffer from poverty and occasional thefts or kidnappings, but overall everything is calm and peaceful.
Well, maybe not everything...
Detective Greenwood is a young man teamed up with a few of his coworkers and put to work by the King himself to track down Avalor's most recent threat.
The Black Rose.
Nobody knows who it is or even if it's human. No one has seen them or heard them, but they do know when they've been visited. A single black rose is always left behind.
Detective Greenwood has taken it upon himself to personally track down whoever this person is. Even though no one has been harmed or severely robbed yet, things can change in an instant.