- Role supplement for Call of Cthulhu, designed by Álex de la Iglesia and set in the 1920s - Mystery and investigation adventure in the most luxurious hotel in Cairo, with two days to solve unexplained phenomena - Unique experience for each group thanks to the mix of open investigation and scheduled events - Includes descriptions of main characters, event timeline, and detailed locations - Tools for the Keeper: diagrams, fold-out maps, random lists of secondary characters, rumors, and phenomena - Specific sections on spells, artifacts, Mythos books, and monsters - Allows interaction with historical figures and the discovery of secrets from ancient Egypt - Requires the Call of Cthulhu Keeper Rulebook, 7th edition for use - Recommended for players aged 14 and up - Softcover binding, Spanish edition, ideal for fans of role-playing games and horror storytelling