Riddle of the Sphinx is a race against time to find out why senior British officers are suddenly going berserk and committing random acts of treason. Unravel the mystery connected with the mysterious Sphinx! This package contains: A color cardboard game reference screen that doubles as a sheet and notes carrying folder; A booklet with a ready-to-play, daring four-Act pulp adventure set in Egypt; modular maps, encounters and subplots that can be dropped in any pulp or superscience adventure; and pre-generated Characters and Villains: Jack Memphis, Docktor Hempell, and many more! A block of Gear Krieg character sheets.