Chlo , Isabelle, Diane, and Sami couldn't be more different: one sketches spirals everywhere, one steadies the group with calm observation, one solves with logic and numbers, and one listens to the whispers of machines. But together, they stumble upon a hidden chamber beneath their town's library and a series of ancient puzzles waiting to be solved.
As they trace spirals, decode symbols, and follow the rule of fours, the friends discover they are part of something much bigger than themselves: a secret that has been waiting centuries for the right minds to unlock it.
But the path is dangerous. Others are searching too, and they will stop at nothing to seize the hidden power for themselves.
Blending mystery, teamwork, and brain-teasing puzzles, The Hidden Code is the first book in The Pattern Seekers series, a thrilling new middle-grade adventure that celebrates curiosity, courage, and the strength found in being different.