Rescuing a squirrel after an accident involving a vacuum cleaner, comic-reading cynic Flora Belle Buckman is astonished when the squirrel, Ulysses, demonstrates astonishing powers of strength and flight after being revived.

Portico Reeves' secret identity as Stuntboy allows him to use his superpower keep everybody safe, but when his superhero parents start fighting a lot he feels the responsibility to save them.

When Princess Magnolia has to sneak out of her own birthday party over and over to change into her alter ego, the Princess in Black, to fight monsters, how will she keep her friends from guessing her secret? And, will she ever get to open her presents?

George and Harold and their doubles, Yesterday George and Yesterday Harold, have been taking turns going to school, but when the doubles fall prey to their gym teacher, Mr. Meaner, and his method of mind control that turns students into attentive, obedient, perfect children, it is up to original George and Harold to strike back.

"Who says princesses don't wear black? When trouble raises its blue monster head, Princess Magnolia ditches her flouncy dresses and becomes the Princess in Black!" --

Afraid to go to horror movies with his friend, Pod, Squish the amoeba feels better after learning that even comic book superheroes get scared sometimes. Includes a science experiment.

"The Princess in Black and her friends are enjoying a day of sun and sea on Princess Sneezewort's royal boat when a real, live mermaid princess emerges from the waves! Eeeeeee! Princess Posy needs their help protecting her very cute sea goats from being eaten by a very greedy kraken. But the princesses and the Goat Avenger quickly realize that fighting underwater can be tough for land dwellers, and only the mermaid Princess Posy can save the day....

"Twelve-year-old Victor Spoil comes from a long line of famous supervillains and he's fully expected to join their ranks one day. But to his family's utter disappointment, Victor doesn't have a single bad-guy bone in his body. He won't run with scissors, he always finishes his peas, and he can't stand to be messy. Hopeless!"--

"Harley Quinn loves fighting crime with her classmates like Wonder Woman, Batgirl, and Supergirl, but she always does it her with own madcap style--and a big mallet! It's no surprise that Harley can't resist getting involved with an upcoming inter-school battle of the bands and a fantastic cosmic carnival that appears only once a year--and this year, it's coming to Earth! But as things get stranger, Harley knows how to get to the bottom of a mystery--and...

Wonder Woman's desire to become a superhero takes her to Super Hero High, where she juggles new friendships, intensive training, and a roommate obsessed with social media.