Attack of the BULLIES (NERDS Book Five)

M is for Mama's Boy (NERDS Book Two)

The Villain Virus (NERDS Book Four)

National Espionage, Rescue, and Defense Society (NERDS Book One)

Vampire Blood Trilogy (The Saga of Darren Shan)

The Fairy-Tale Detectives (Sisters Grimm #1)

Vampire Destiny Trilogy (The Saga of Darren Shan)

The Problem Child (Sisters Grimm #3)

Vampire Rites Trilogy (The Saga of Darren Shan)

Once Upon a Crime (Sisters Grimm #4)

Vampire War Trilogy (The Saga of Darren Shan)

Tales from the Hood (Sisters Grimm #6)

The Unusual Suspects (Sisters Grimm #2)

Magic and Other Misdemeanors (Sisters Grimm #5)

The Sisters Grimm: A Very Grimm Guide: Inside the World of the Sisters Grimm, Everafters, Ferryport Landing, and Everything in Between