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Mattel Press, working with Simon & Schuster, has announced three children’s book series planned for summer 2027: a Rock ’Em Sock ’Em Robots graphic novel, a middle-grade story about young witches, and an illustrated Chatty Cathy adventure. The books are available to preorder, though prices and exact publication dates were not included in The Toy Book’s report.
Mattel Press has announced three children’s book series planned for summer 2027, expanding properties including Rock ’Em Sock ’Em Robots and Chatty Cathy into new stories for young readers. The imprint is publishing the books in partnership with Simon & Schuster; according to The Toy Book, all three opening titles are available to preorder.
The announced lineup includes We’re Gonna Need a Bigger Bot, a graphic novel by Dustin Brady based on Rock ’Em Sock ’Em Robots. The story follows the creators of Blue Bomber and Red Rocker as they compete to take control of Downs Town, using inventions and increasingly outlandish schemes that lead to comic battles. The Toy Book says the graphic novel is intended for children aged five and up.
Moonspell School for Witches, written by Jen Calonita, follows five young witches taking part in Witch Trials to find out whether they can attend a legendary magical school. The story focuses on the girls’ different strengths and the value of working together. The report describes the series as aimed at older tweens, but does not give a more specific age range.
The third title, Chatty Cathy and Planet Silent by Rebecca Elliot, is an illustrated adventure about Cathy Chatterson and her friends Benjamin Pinkles and Mr. Bulky. They arrive on a world without sound and encounter a Silence Beast. The story turns Cathy’s talkativeness, which often gets her into trouble, into a possible asset. The report says later installments are planned across October 2027 and 2028.
Mattel’s Properties Move Into New Stories
The announcement gives families and young readers a preview of a three-part publishing slate built around familiar Mattel properties, while also introducing original characters and settings within those worlds. The books are distinct in format and audience: one is a graphic novel for younger children, one is a middle-grade fantasy, and one is an illustrated adventure.
The planned follow-up titles suggest these are intended as series rather than standalone releases. That creates a longer publishing schedule for readers who choose to follow the characters, although the announcement does not provide sales expectations, print runs, or further information about how the series will be marketed. The preorder availability gives interested readers a way to order the opening books before their planned publication window.
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A Simon & Schuster Publishing Partnership
Mattel Press is Mattel’s publishing imprint, and the three series are being developed in partnership with Simon & Schuster. The Toy Book’s report presents the projects as part of the imprint’s upcoming books for young readers, spanning licensed brands and new fictional adventures.
The announced schedules extend beyond the initial summer 2027 releases. A second Rock ’Em Sock ’Em Robots title is planned for spring 2028, while the next Moonspell School for Witches book is slated for fall 2028. Chatty Cathy’s additional books are listed for October 2027 and spring 2028. These are the schedules reported in the announcement, not confirmation that books have already been released.
Publication Details Still Pending
The report does not list exact release dates for the three opening titles, their prices, formats beyond the descriptions provided, or preorder links for individual editions. It says the books are available to preorder and directs readers to Simon & Schuster’s website for more information.
It is also unclear whether the announced follow-up dates are firm publication dates or planned windows that could change. The report provides no additional details about the books’ page counts, illustrators beyond the named Chatty Cathy author, or the full creative teams. Those details should be checked against publisher listings as they become available.
Watch for Publisher Release Dates
Readers can check Simon & Schuster’s listings for preorder information and any later updates to publication dates, formats, or prices. The next reported milestones are the Chatty Cathy follow-up planned for October 2027, additional Chatty Cathy and Rock ’Em Sock ’Em Robots books in spring 2028, and a Moonspell School for Witches sequel scheduled for fall 2028.
For now, the confirmed development is the announcement of the three series and their planned publishing windows. Further details—including exact dates for the opening books—remain pending.
Key Questions
Which three series did Mattel Press announce?
The titles are Rock ’Em Sock ’Em Robots, beginning with We’re Gonna Need a Bigger Bot; Moonspell School for Witches; and Chatty Cathy, beginning with Chatty Cathy and Planet Silent.
When are the books expected to be published?
The three opening titles are planned for summer 2027. The Toy Book report does not provide exact release dates.
Are the books available to preorder?
Yes. The Toy Book reports that all three opening books are available to preorder and directs readers to Simon & Schuster for more information.
What ages are the books intended for?
The Rock ’Em Sock ’Em Robots graphic novel is described as suitable for children aged five and up. Moonspell School for Witches is aimed at older tweens. The report does not give a specific age range for the Chatty Cathy book.
Are sequels planned?
Yes. The report lists follow-up books for the three series, with planned publication windows from October 2027 through fall 2028. Those schedules may be subject to change.
Source: toybook.com
