"- All the more impressive when considering that "The Secret Key of Pythagorum" is author Michele Angello's debut as a fantasy fiction writer for young readers, this imaginative and deftly crafted novel will prove to be an immediate and enduringly popular addition to both school and community library collections. It should be noted for the personal reading lists of dedicated fantasy fans..."       - Midwest Book Review

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"...Overall, this historical fantasy was a tale that was well-written and flowed well. It was one that featured a likable and realistic character which many young adult readers could relate to his uncertainty and his eventual growth. Therefore, I give The Secret Key of Pythagorum a 4 out of 4 stars."                 - HSimone, Online Bookclub