150px-SMRPG Greaper
This is both a character in my book series and an actual Shy Guy variety in the game Super Mario RPG: Legend of the Seven Stars. In the game they wear orange cloaks but in my book there is only one and it wears gray instead of orange. Both versions are able to float and carry a scythe. Also early on in my book, only one person could see him and it was Toon Link.