The lone sentinel stands 7 ft-tall, is some 3 ft-thick, and 6 ft-wide. Its existence is relegated to the purview of sages, story tellers, shamans, and imaginative bards. Reasons for the Door's appearance throughout history is unkown, and tales of its creation (as well as its true purpose) are equally mysterious and varied... This all new adventure includes; 4 complete modules, new player character race, 5 new creatures, new magic items, Open Gaming Content,6 detailed adventure maps, 19 pre-generated PC templates Designed for First Edition and OSRIC fantasy-based role-playing game systems. Buy the print version, and get the PDF for free! Suggested No. PC's: 4-6 Suggested levels: mixed mid-levels. Play as a stand-alone module, or as the first of six adventures that make up The Tower of Mysteries campaign. Get the downloadable PDF free with your purchase of the book. (See inside book for details. Offer subject to change or cancellation without notice.)