Lightroom Classic: Cannot find my saved book on my new computer. Did I import it incorrectly?

Hi there,

I just took a course in digital bookmaking and I brought home my near final book on my personal hard drive to finish it up at home.  I installed Lightroom Classic on my home Mac... and I imported the last saved catalog from class.  It loaded all of my photos and then created a new book with every single photo in my library.  Definitely NOT the book i had worked on for a week in class.  I can't seem to locate the book I had made in class.  It was a saved project and all was good.  I know it's in there somewhere! 
 
Any advice as to how I can retrieve it?  Did I import incorrectly?  

Any input would be appreciated! I have emailed my instructor, but haven't heard back.

Thanks!   
Liz