Cambridge’s Maxwell Seelig, 11, is making his debut with the Boston Children’s Theatre in “Flat Stanley” through March 15. (Photo: Boston Children’s Theatre)

Flat Stanley began his wild coast-to-coast and overseas travels today in a Boston family musical, but only because Maxwell Seelig is on his own creative journey.

He’s the star of “The Musical Adventures of Flat Stanley,” playing at the Calderwood Pavilion in Boston through March 15 as part of the 2014-15 season at the Boston Children’s Theatre. But Maxwell, 11, is also a Cambridge resident and a fifth-grader at the Buckingham, Brown & Nichols private day school.

At his school, he’s appeared only in a production of “Charlotte’s Web.” While this is his debut with the Boston Children’s Theatre, Maxwell has worked with Cambridge’s Jose Mateo Ballet Theatre in “The Nutcracker,” and families who travel around for their fun might recognize him from Wheelock Family Theatre’s productions of “Iggy Peck Architect” and “Alice in Wonderland.” At Brookline’s Artbarn Community Theatre he’s been in “Once Upon a Mattress,” “The Little Mermaid,” “Where’s My Cape?,” “Peter Pan,” “Robin Hood,” “Mendel’s Accordion” and “Cinderella.”

He gets around.

“I love every performing arts thing,” Maxwell said. “I act, sing, dance and do ballet. And I love classic fiction stories like ‘Alice In Wonderland.’”

Maxwell self-published a novel in December.

He loves it enough to have recently written and published his own – a 34-chapter, 86-page fantasy novel called “Fro-Yo in Wonderland” about a boy named Zach who discovers a teacher in his school is the Queen Of Hearts from “Alice.”

“He starts a quest to find out why the Queen Of Hearts is obsessed with chopping off people’s heads, but especially his,” Maxwell said, describing a plot that brings other characters from Lewis Carroll’s fantasy novel tumbling into Zach’s life. Not surprisingly, Maxwell’s favorite writing include J.K. Rowling and her “Harry Potter” series and Rick Riordan of the “Percy Jackson and the Olympians” series.

“The Musical Adventures of Flat Stanley,” based on the book “Flat Stanley” by Jeff Brown, transforms young Stanley Lambchop into a flattened version of himself. With the help of the postal service, family and friends, Flat Stanley travels the world. This adaptation by Timothy Allen McDonald adds songs, with music and lyrics by Timothy Allen McDonald, David Weinstein, Jonathan K. Waller and Stephen Gabriel.

“Flat Stanley has become a hero to so many young students,” said Burgess Clark, the troupe’s executive artistic director. “With this production we are encouraging theatergoers to let their imaginations soar … We hope audience members will bring their own Flat Stanleys to the theater to experience this live stage performance together.”

Maxwell’s show, directed by Toby Schine and co-directed by Eric Love with musical direction by Jaime Castellanos, has additional performance at the Calderwood Pavilion, 527 Tremont St., Boston, on Sunday and March 14 and 15 at 2 pm. Tickets are $27. Information is here.

This post took significant amounts of material from a press release.