DR. EXPERIMENTOR AND THE LEAGUE OF EVIL by Charlotte Nixon

Dr. Experimentor, a mastermind supervillain, must fight to maintain her membership in the infamous League of Evil. There's just one problem - membership means defeating superhero Extremo, who happens to be her best friend! To make matters worse, Dr. Experimentor faces relentless pressure from Agnes and Abigail Anarchy, ambitious upstart villains eager for her downfall. Armed with her arsenal of ingenious inventions - minions, Vegetarian Zombies, Pacifist Ninjas, and Robot Soldiers - Dr. Experimentor faces an impossible choice: defeat her superhero or suffer at the hands of the League!