Though Madonna claims she wrote the Kabbalah themed children's books as "Mr. Peabody's Apples", "Yakov and the Seven Thieves" and "Lotsa de Casha", it may not be completely true.

Sources tell Pagesix.com that her books have all been written by the Kabbalah Center's official ghost-writer Eitan Yardeni.

"Eitan also writes all of Yehuda and Phillip Berg's books and the Kabbalah Books for the Center. Last summer, he flew to London to help Madonna write the last book, but she didn't really do anything," they say.

Madonna's representative refused to return calls. Kabbalah is a offshoot religion of Judaism and is a new craze among celebrities spearheaded by Madonna.