Max

Uncle Mac is a character in book 10 of the Horrendously Horrible Happenings fictional book series by Persimmony Glitchet. Unlike some other characters from the books, he has not been seen on the Arthur series, but it has been mentioned that in book 10 the orphans went to live with him, who is their uncle. He is believed to have a job at the aquarium, where most of the action in the book appears to take place.