It Ate Billy on Christmas HC

It would have been a Christmas like any other for little Lumie and her horrible, terrible, obnoxious, awful bully of a brother Billy.  But then a funny little monster appeared and ate Billy right up! Lumie knows it's not really a good thing to let a monster eat your brother, but she can't help but notice that things are, in fact, much nicer now that he's gone. Now that things are looking up a little in her world, Lumie has to decide what to do with her new little monster friend, and-most importantly-what she's going to feed him ...