The Secret Series

When intrepid investigators Cass and Max-Ernest set out to discover the history of the mysterious Symphony of Smells, they become embroiled in a dastardly experiment involving kidnapped children and the secret of eternal youth. Together they must come up with a plan to rescue their classmate from a hideous fate and escape the eerie pyramid of the Midnight Sun.

Read the series that's sold more than 2 million copies—if you dare! Warning: this description has not been authorized by Pseudonymous Bosch. As much as he'd love to sing the praises of his book (he is very vain), he wouldn't want you to hear about his brave 11-year old heroes, Cass and...

Beware! Dangerous secrets lie between the pages of this book. OK, I warned you. But if you think I'll give anything away, or tell you that this is the sequel to my first literary endeavor, The Name of This Book is Secret, you're wrong. I'm not going to remind you of how we last left our heroes...

The Secret Series continues in this dangerous and daring fourth adventure. Cass finds herself alone and disoriented, a stranger in a dream-like, medieval world. Where is she? Who is she? With the help of a long-lost relative, she begins to uncover clues and secrets--piecing together her family's...

The finale to the New York Times bestselling Secret Series! I always feared this day would come. A secret is meant to stay secret, after all. And now we've come to this: the fifth and final (I swear!) book in my saga of secrets. A class trip to the local natural history museum turns dangerous...