Missed Base

Question
I had a situation this year in a 10U game where an opponent hit a three run home run. When she was rounding third base she missed the bag and perceeded to tag home plate and retreat to the dugout. My question is, what is the poper appeal process for me and how would the runner have to return to the base to be legal.
Reponse
If the runner has entered the dugout, she can not return to touch third base (Rule 9 Sec 6 para B)
If she has not entered the dugout and time has not been called, she may retouch home and go to third & then return to home.

Before the ball becomes dead, any fielder with the ball could touch third base (or the runner if she has not entered the dugout) and announce she is appealing.

After all play has completed, any coach or player can make a verbal appeal by simply stating to the umpire that they are appealing the runner missed third base.