Book 1
The Fairy-Tale Detectives (Sisters Grimm #1)
Michael Buckley
Book 2
The Unusual Suspects (Sisters Grimm #2)
Michael Buckley & Peter Ferguson
Book 3
The Problem Child (Sisters Grimm #3)
Michael Buckley & Peter Ferguson
Book 4
Once Upon a Crime (Sisters Grimm #4)
Michael Buckley & Peter Ferguson
Book 5
Magic and Other Misdemeanors (Sisters Grimm #5)
Michael Buckley & Peter Ferguson
Book 6
Tales from the Hood (Sisters Grimm #6)
Michael Buckley & Peter Ferguson
Book 8
The Inside Story (Sisters Grimm #8)
Michael Buckley & Peter Ferguson
Book 9
The Council of Mirrors (Sisters Grimm #9)
Michael Buckley & Peter Ferguson