Dr. Kenneth Walker, an accomplished and celebrated surgeon, encounters P.D. Ouspensky, with whom he works for decades in London, and Gurdjieff, whom he meets later in Paris. All his education and experience contrive to deny for him the very existence, let alone significance, of an esoteric teaching, but the ideas are compelling. Walker’s life story assumes the quality of an inner adventure. The author refers the reader to the core books of Ouspensky and Gurdjieff himself for an exposition of the ideas.  Though brief, his vividly depicted experiences with Gurdjieff stand out, rendering another unique and powerful portrait.  This book is particularly interesting because it chronicles the different periods of work with Ouspensky, eventually including his wife, Madame Sophie Grigorievna Ouspensky.