Allison Gross is a character in a story which applies the writing technique known as the rule of three that introduces characters in threes.
Allison Gross, a hideous witch, tries to bribe the narrator to be her "leman". 
 His sister Maisry came to him to comb his hair. 
 One day the Seelie Court came by, and a queen stroked him three times, turning him back into his proper form. 
The rule of three is a writing principle that suggests that events or characters introduced in threes are more humorous, satisfying, or effective in execution of the story and engaging the reader. 
