by Melissa Langonegro; illustrated by Art Mawhinney by Melissa Lagonegro ; illustrated by Niall Harding. written by Melissa Lagonegro ; illustrated by Amanda Haley. by Nickelodeon ; illustrator by Art Mawhinney. cover illustrated by Art Mawhinney illustrated by Art Mawhinney by Melissa Lagonegro ; illustrated by Peter Emslie and Elisa Marrucchi. illustrated by Art Mawhinney. Illustrated by Art Mawhinney illustrated by Art Mawhinny