The Secret Dakini Oracle Deck is a tantric divination deck created by Nik Douglas and Penny, focusing on spirituality and esoteric practices. This deck offers a unique blend of mystical symbolism and intuitive guidance for those seeking to explore the realms of the unknown. The accompanying book provides insights and instructions on how to use the deck for divination purposes, making it a valuable tool for those interested in the occult and the exploration of the hidden realms of consciousness.