Will The Real Monster Please Stand Up?

Once upon a crime, there lived two siblings named Hansel and Gretel (yes, that Hansel and Gretel) who gained a fearsome reputation as witch hunters. But there are nastier things than witches out in the wide world. What will they do against an enemy who can hide in plain sight? How can they find him or her before they kill again?

(This is my first time publishing an original story, so please let me know what you think.)