Intro -- Title Page -- Chapter 1: Backyard Spies -- Chapter 2: On a Mission -- Chapter 3: Who Goes There? -- Chapter 4: The Magic Seed -- Chapter 5: Whoops! -- Chapter 6: What Was 'That'? -- Chapter 7: Not Again! -- Chapter 8: Ghost Zapper -- Chapter 9: The Cat and the Hat -- Chapter 10: Up a Tree -- 'Henry Heckelbeck Spells Trouble' Teaser -- About the Author and Illustrator -- Copyright.