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.

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.

The Strong family is having a reunion in New Orleans, and twelve-year-old Tristan is supposed to be keeping an eye on his younger cousin Terrance when several things happen at once: he sees his archenemy, King Cotton, and a mysterious girl grabs his magic cellphone--her name is Seraphine, and she seems to know everything about Tristan and the god Anansi (currently inhabiting the cellphone), and she has a mission for Tristan, one that is going lead...

Picking up after Quint and Dirk's Hero Quest, the Last Kids are happily reunited--but quickly faced with a monstrous new mission. Inside an other-dimensional fortress, the evil Thrull, alongside a vile new villain, is carrying out a sinister plan. Jack, Quint, June and Dirk must make their own plans to infiltrate the stronghold before Thrull gets any closer to completing the mysterious Tower, a structure that could ultimately spell doom for this dimension....

Barb and her best friend Porkchop the yeti must save her fellow warriors from the evil sorcerer Witch Head before he destroys the land of Bailiwick.

"Ramya Knox is used to feeling cursed. People only notice her long enough to call her a troublemaker. Except Grandpa. He sees Ramya and her neurodiversity as enchanting. But when Grandpa dies, Ramya's world loses its charm...until she discovers he left behind one big secret: that magic is real and Ramya can see it. Trolls, vampires, kelpies, and more fantastical beings hide in the shadows for Ramya to discover. But the Hidden Folk need protection...

"A descendant of Medusa, Ava is sent to the Accademia del Forte in Venice after an altercation with a classmate, where she must learn to control her emotions, especially when she unearths a terrible secret that could change the world forever"--

A reluctant monster allows the reader to play with his book.

During the first winter after the Monster Apocalypse, Jack and his buddies prepare for a monstrous Christmas celebration, but a supervillainess steals Jack's prized monster-slaying weapon, his Louisville Slicer, and he vows to get it back.