Monday Charles is missing. And no one seems to care.
For Claudia, Monday is more than a best friend. She is the person who makes school bearable, the one who knows every secret and every fear. So when Monday does not show up for the first day of class, Claudia worries. When she is still missing weeks later, Claudia knows something is wrong.
But every adult Claudia turns to dismisses her. Monday’s mother avoids questions, and her sister April insists nothing is wrong. As Claudia pushes for answers, she discovers that no one even remembers the last time they saw Monday. No one except her.
To find the truth, Claudia must face the unthinkable: some disappearances happen not by accident, but because the world looks away.