Jen Campbell ; illustrated by Katie Harnett. Jen Campbell, [illustrated by] Katie Harnett. Jen Campbell and Katie Harnett James Campbell ; illustrated by Rob Jones. Jen Campbell, Katie Harnett. Jenny Oldfield ; illustrated by Kate Aldous. Jen Campbell, Katie Harnett Becky Rainbird ; illustrated by Katie Wood. Emma Yarlett ; illustrated by Emma Yarlett. illustrated by Kate Merritt.