- King & Kayla and the case of the unhappy neighbor, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- King & Kayla and the case of found Fred, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- My mom's having a baby!, Dori Hillestad Butler ; illustrated by Carol Thompson
- The Buddy files, the case of the missing family, by Dori Hillestad Butler ; illustrated by Jeremy Tugeau
- The secret room, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library, 3
- King & Kayla and the case of the gold ring, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- The hide-and-seek ghost, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library, 2
- Butler, Dori Hillestad, Buddy files, .1
- Butler, Dori Hillestad, Dear Beast, #3
- Dear Beast, by Dori Hillestad Butler ; illustrated by Kevan Atteberry
- The underground ghosts, super special, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, Haunted library, 5
- The ghost backstage, by Dori Hillestad Butler ; illustrated by Aurore Damant
- The pet parade, by Dori Hillestad Butler ; illustrated by Kevan Atteberry
- 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, Haunted library, 6
- Someone is missing!, by Dori Hillestad Butler ; illustrated by Kevan Atteberry
- Butler, Dori Hillestad, Dear Beast, #4
- The ghost in the attic, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Simon sleeps over, by Dori Hillestad Butler ; illustrated by Kevan Atteberry
- Butler, Dori Hillestad, Haunted library
- King & Kayla and the case of the lost library book, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- Butler, Dori Hillestad, Dear Beast
- The ghost in the tree house, by Dori Hillestad Butler ; illustrated by Aurore Damant
- Butler, Dori Hillestad, King & Kayla
- 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