P
Pseudonymous Bosch
The Secret
The Secret
5 books
Complete series
About this series
A middle-grade mystery series following friends Cass and Max-Ernest, who uncover a string of secrets tied to the five senses while opposing the sinister Ms. Mauvais, Dr. L and the Terces Society — from The Name of This Book Is Secret (2007) through You Have to Stop This (2011), with the interactive companion Write This Book (2013) capping the run.