- The five o'clock ghost, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Buddy files, 5
- The secret room, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library, 3
- The Buddy files, the case of the school ghost, by Dori Hillestad Butler ; illustrated by Jeremy Tugeau
- The Buddy files, the case of the missing family, by Dori Hillestad Butler ; illustrated by Jeremy Tugeau
- Butler, Dori Hillestad, Buddy files, .1
- The final treasure, by Dori Hillestad Butler ; illustrated by Tim Budgen
- The hide-and-seek ghost, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library, 2
- My mom's having a baby!, by Dori Hillestad Butler ; illustrated by Carol Thompson
- The ghosts at the movie theater, by Dori Hillestad Butler ; illustrated by Aurore Damant
- King and Kayla and the case of the secret code, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- King & Kayla and the case of the lost tooth, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- Butler, Dori Hillestad, Treasure Troop, 4
- The ghost backstage, by Dori Hillestad Butler ; illustrated by Aurore Damant
- The underground ghosts, super special, by Dori Hillestad Butler ; illustrated by Aurore Damant
- The case of the mixed-up mutts, by Dori Hillestad Butler ; illustrated by Jeremy Tugeau
- Butler, Dori Hillestad, Haunted library, 5
- King & Kayla and the case of the mysterious mouse, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- Butler, Dori Hillestad, Haunted library, 6
- The case of the library monster, Dori Hillestad Butler ; pictures by Jeremy Tugeau and Dan Crisp
- Butler, Dori Hillestad, Treasure troop, 1
- Mr. Summerling's secret code, by Dori Hillestad Butler ; illustrated by Tim Budgen
- The ghost in the attic, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, King & Kayla
- Butler, Dori Hillestad, Haunted library, bk. 1
- The haunted library, by Dori Hillestad Butler ; illustrated by Aurore Damant
- King & Kayla and the case of the missing dog treats, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- The Buddy files, the case of the lost boy, by Dori Hillestad Butler ; pictures by Jeremy Tugeau
- The ghost at the fire station, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library
- The Buddy files, the case of the fire alarm, Dori Hillestad Butler ; pictures by Jeremy Tugeau
- Butler, Dori Hillestad, Haunted library, bk. 4
- The ghost in the tree house, by Dori Hillestad Butler ; illustrated by Aurore Damant