by Margaret Frith ; illustrated by John O'Brien. by Megan Stine ; illustrated by John O'Brien. by April Jones Prince ; illustrated by John O'Brien. by Patricia Brennan Demuth ; illustrated by John O'Brien. by Avery Reed ; illustrated by John O'Brien. by Joan Holub ; illustrated by John O'Brien. by Roberta Edwards ; illustrated by John O'Brien. by Janet B. Pascal ; illustrated by John O'Brien. by Margaret Eustace ; illustrated by Tony Kenyon. by Jane O'Connor ; illustrated by John O'Brien.