Topkek is a character introduced in Book 16.
Topkek is a dragon. She is a TopkekWing, which are actually called KeyboardMashWings but Clay mistook them to be called TopkekWings when he had the Amulet of Reality Control so they are. Her scales are brown if yours are, and blue if yours are not. Clay fell in love with her, even though he already is married to Sally the Watermelon and engaged to Peril.