Avatars

• So This Is How It Ends (2006)
• Shadow Falling (2007)
• Kingdom Of Twilight (2008)

Mo and Ella

• Meet Mo and Ella (2001)
• Fun with Mo and Ella (2002)

Glitter Tattoo Books

• Monster Party (with glitter tattoos) (2000)
• Silly Creepy Crawlies (with glitter tattoos) (2000)
• Glittering Galaxies: A Trip Through the Stars (with glitter tattoos) (2001)

Seekers series

• The Quest Begins (2008, as Erin Hunter)
• Smoke Mountain (2009, as Erin Hunter)
• Fire in the Sky (2010, as Erin Hunter)

Warriors series

• Secrets of the Clans (2007, as Erin Hunter)

Pet Trouble series

• Pet Trouble-Runaway Retriever (2009, as T. T. Sutherland)
• Pet Trouble-Loudest Beagle on the Block (2009, as T. T. Sutherland)
• Pet Trouble-Mud-Puddle Poodle (2009, as T. T. Sutherland)
• Pet Trouble-Bulldog Won't Budge (2009, as T. T. Sutherland)
• Pet Trouble-Oh No, Newf! (2010)

Pirates of the Caribbean: Legends of the Brethren Court

• The Caribbean (2008, as Rob Kidd)
• Rising In The East (2008, as Rob Kidd)
• The Turning Tide (2009, as Rob Kidd)
• Wild Waters (2009, as Rob Kidd)

Other books

• Jewel Sticker Stories: Stories of the Stars (2000)
• Kermit's Mixed-Up Valentines (co-written with Emily Sollinger) (2001)
• Hide and Go Peep! (2001)
• Who Was Harry Houdini? (2002)
• This Must Be Love (2004)
• He's With Me (2007, as Tamara Summers, part of the I Heart Bikinis series)
• Pirates of the Caribbean: At World's End (2007, junior novelization, as T. T. Sutherland)
• Pirates of the Caribbean: At World’s End: The Movie Storybook (2007, as T. T. Sutherland)
• Pirates of the Caribbean: At World’s End: Force of Will (2007)
• Pirates of the Caribbean: At World’s End: The Mystic’s Journey (2007)
• Pirates of the Caribbean: At World’s End: Singapore! (2007)
• Pirates of the Caribbean: At World’s End: Saving Jack Sparrow (2007)
• Nellie Oleson Meets Laura Ingalls (2007, as Heather Williams, part of the Little House series)
• Save the Date (2008, as Tamara Summers)
• Never Bite a Boy on the First Date (2009, as Tamara Summers)