United Middle School Mysteries Book 16 The Case of the Familiar Stranger (Paperback) (ISBN-13: 9798233938412)

Locked classrooms.
Countdown messages.
Unscheduled assemblies.
A stairwell everyone forgot.

And a stranger who walks the halls like he's always belonged.

When United Middle School's rhythm begins to shift, the Young Investigators know something is off. Jake leads. Emily questions procedure. Max follows the data. Amy trusts her instincts. And Chip and Mia... accidentally test every theory in the loudest possible way.

What starts as separate mysteries becomes something bigger - a pattern hidden in plain sight.

In Book 16, the team discovers that familiarity isn't invisibility. It's belonging. And sometimes the only way to solve a mystery is to pay attention to what everyone else has stopped noticing.