"The Secret Power" is a novel written by the British author Marie Corelli. It was first published in 1921. Marie Corelli was a popular and prolific writer during the late 19th and early 20th centuries, known for her works of romantic and often fantastical fiction. "The Secret Power" is one of her later novels and falls into the genre of mystical and supernatural fiction.

The novel revolves around the character of Heliobas, a mystic and spiritual guru who possesses extraordinary powers. He can not only communicate with the spirit world but also influence the thoughts and emotions of those around him. Heliobas uses these abilities to help people find spiritual enlightenment and inner peace. The novel explores the idea of a higher spiritual realm and the interconnectedness of all living beings.

The story begins with the introduction of the protagonist, a young man named Paul, who is skeptical about spiritual matters and is searching for answers about the mysteries of life. He encounters Heliobas and is drawn into a world of mysticism and wonder. Through a series of encounters and experiences, Paul's perspective on life is transformed, and he begins to embrace the belief in a higher power and the interconnectedness of all existence.

"The Secret Power" delves into themes of spirituality, the supernatural, and the power of the human mind. It's a novel that explores the mystical and metaphysical, blending elements of romance, philosophy, and spirituality. Corelli's writing style is characterized by vivid descriptions and a penchant for the supernatural, which adds a sense of mystery and wonder to her storytelling.

While "The Secret Power" may not be as well-known today as some of Corelli's earlier works, it reflects her interest in mysticism and the exploration of spiritual and philosophical themes. Readers interested in late 19th and early 20th-century mystical and supernatural fiction may find this novel intriguing, as it offers a glimpse into the spiritual beliefs and fascinations of the era.