Off White Wolfcomic What Will Take Off Black Crayon From Off White Flat Painted Wall?

What will take off black crayon from off white flat painted wall? - off white wolfcomic

My daughter was on my wall on today, with a pencil, the wall is painted with flat white paint on the outside. I have tried baby wipes and toothpaste, and conduct only the color a little easier and the pen. What works to remove it?