Where do I find my "Volunteers" book?

during our collaborative evening, I started working on the Introduction to Positions page, creating a couple of links outlining the positions available.  I'm not finding that page any more. 
I did try to "add content" then "add a book" and associate my book with an existing book.  There I did find the "Introduction to Positions" book title...but where is that book again?  I'm a little lost.