In “H. P. Blavatsky: A Great Betrayal,” Alice Leighton Cleather delves into the life and legacy of Helena Petrovna Blavatsky, a key figure in the modern Theosophical movement. Cleather employs a critical and analytical literary style, weaving together biographical narrative and philosophical critique to explore the complexities of Blavatsky's teachings and their implications. This thorough examination not only situates Blavatsky within the historical context of 19th-century esotericism but also addresses the controversies and ideological schisms that surrounded her, providing a richly layered understanding of her impact on spiritual thought and practice. Alice Leighton Cleather, deeply immersed in Theosophical teachings herself, draws from her firsthand experience to critique Blavatsky's doctrines. As a prominent member of the Theosophical Society and a contemporary of Blavatsky, Cleather's insights are informed by both admiration and skepticism, providing a unique dual perspective that illuminates the challenges of interpreting Blavatsky's enigmatic legacy. This book is a compelling read for those interested in spirituality, philosophy, and the complexities of religious movements. Cleather's nuanced perspective invites readers to reconsider preconceptions surrounding Blavatsky, making it an essential text for scholars and enthusiasts of esoteric traditions alike.