by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monoz. by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Mones. by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca. by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari. Mary Pope Osborne and Natalie Pope Boyce Written by Mary Pope Osborne and Natalie Pope Boyce by Mary Pope Osborne ; illustrated by AG Ford.