Which author of the series "My America", is also the author of the series "Magic Tree House"?
Magic Tree House The Magic Tree House is an American series of children's books written by American author Mary Pope Osborne. The original American series is illustrated by Salvatore Murdocca, although other illustrators have been used for foreign-language editions.
Margarita Madrigal Margarita Madrigal (May 15, 1912 – July 23, 1983) was a Costa Rican American author and language teacher best known for the "Madrigal's Magic Key to..." and "An Invitation to..." series. During her career, she wrote 25 books covering seven languages.