About Abby Carter Books by Abby Carter The Invisible Enemy by (author) Marthe Jocelyn illustrated by Abby Carter Ages 8 to 12 Grades 3 to 7 The Invisible Harry by (author) Marthe Jocelyn illustrated by Abby Carter Ages 8 to 12 Grades 3 to 7 The Invisible Day by (author) Marthe Jocelyn illustrated by Abby Carter Ages 8 to 12 Grades 3 to 7
