When a mysterious glowing backpack appears in the school hallway, Maya Khan and her friends discover something impossible inside: a tiny hidden version of their classroom, complete with strange rules, shifting hallways, and a world that seems to grow when fed by light.

Maya, Leo, June, and Amir are ordinary middle-school students?until the backpack starts humming, writing warnings in a notebook, and opening a doorway into a miniature universe called Minicity. The rules are clear: don't drop it, don't feed it loose power, and never ignore the tiny world inside.

But as the friends build paperclip bridges, map secret locker libraries, and uncover clues about the backpack's strange powers, they realize Minicity is more than a science mystery. Something inside is waking up?and it may not want to stay small.

Tiny Titans: The Shrink-Suit Secret is a fast-paced middle-grade sci-fi adventure full of friendship, curiosity, teamwork, humor, and big discoveries in a tiny world.