After being cast as the Ninja Master in his school's Halloween play, a boy decides it is time to catch the monster in his closet.

When two masterminds--Mary, the daughter of Mary Wollstonecraft, and Ada, the daughter of Lord Byron--are brought together by fate, they make a shocking--and magical--discovery that draws the attention of a mad scientist.

Against his better judgment, fifth grader Griffin Birch follows his best friend down the new slide in the school playground, and at the other end of this portal they discover a cruel world populated by bloodthirsty creatures on a quest to become immortal.

One boy's journey to help his village becomes a quest to save the kingdom. Features a fearsome new beast in every book! Under the spell of the dark wizard Malvel, Cypher the one-eyed Giant wreaks havoc on the city he used to protect: Colton, the very center of the Kingdom's trade routes. Our heroes must head North to the mountains to free Arcta and help unearth Colton from mudslides and rock falls before it's too late! Adam Blade is in...

Doris throws a slumber party for Ben and her other monster friends, complete with games, snacks, and an effort to stay up all night.

When the new fish in class criticizes everything and tries to bully the other students, Sea Monster needs to think of a way that everyone can play together and get along.

Groggle is hoping to make the perfect Valentine's Day card for Snarlina.

A boy finds a mysterious treasure in a junkpile and creates a monster to guard it.

When the Raine family heads to Razu Island for vacation, Harper finds something weird is happening in the spirit realm, but she can't figure out how it is connected to an old murder at the resort or the present-day disappearances.