Discover the intriguing world of secret hiding places and underground passages with this 1936 booklet by J Hope Urwin. The author takes the reader on a journey of exploration into the fascinating topic of hidden spaces. The booklet is illustrated and is a first edition, making it a valuable addition to any collection it has 32 pages. The content is written in English and was published by the Society for Promoting Christian Knowledge in the United Kingdom. The booklet is classified as an antiquarian and collectable item, with non-fiction subject matter centred around architecture and design. It is an original copy and not a facsimile.