Oddly Pedestrian Life of Christopher Chaos, The #9

Synopsis

Six months have passed since the battle in the Monster Underground, and Christopher has never been happier. He's finally embracing his inner mad scientist, building new inventions every day, and maybe even starting a Monster Club with Jordi and Viv?! But when two new students arrive at school and old foes refuse to die, Christopher's newfound bliss may end as soon as it began...