- The case of the blind beetle, Holly Webb ; illustrated by Marion Lindsay
- The case of the spilled ink, Holly Webb ; illustrated by Marion Lindsay
- Merhorses and bubbles, story by Asia Citro ; pictures by Marion Lindsay
- The case of the phantom cat, written by Holly Webb ; illustrated by Marion Lindsay
- Monsters and mold, Asia Citro ; pictures by Marion Lindsay
- The case of the weeping mermaid, Holly Webb ; illustrated by Marion Lindsay
- The case of the stolen sixpence, written by Holly Webb ; illustrated by Marion Lindsay
- Dragons and marshmallows, Asia Citro ; illustrator, Marion Lindsay
- The case of the secret tunnel, written by Holly Webb ; illustrated by Marion Lindsay
- The case of the vanishing emerald, written by Holly Webb ; illustrated by Marion Lindsay
- The case of the feathered mask, written by Holly Webb ; illustrated by Marion Lindsay