5 books • 3 series
Book #1: Lincoln's Legacy
Book #2: Disney's Dream
Book #2: Disney's Dream, 2
Book #2: Blast to the Past
Book #1: Ghost Class
Book #2: Ghost Game
Book #3: New Ghoul in School
Book #4: Happy Haunting
Book #5: Stage Fright
Book #1: Wingin' It with the Wright Brothers
Book #2: Cross-Country With Lewis and Clark