From the back of the book:
When a stranger dies in a chamber that can't be entered, in a way that can't happen, and for no apparent reason, authorities call in YOU, Sebastian Cord, the Orion Foundation's top Special Intelligence agent, to help solve the case.
But that single mysterious death helps Cord uncover a far more sinister scheme - one that could destroy humanity by turning people into mindless slaves!
In this CATACOMBS style adventure book, you enter a world of espionage filled with gadgets, guns, and genetic glitches. To complete your assignment, you must explore the rooms of a secluded laboratory, interpret clues found in the special pocket* at the back of the book, avoid or fight off guards, and locate and destroy the creation known as THE FINAL BUG!
THE FINAL BUG is an illustrated solo operations casebook based but not dependent on the TOP SECRET/S.I. role-playing game system. It is a complete game adventure by itself.
By using keen Special Intelligence skills, you'll uncover the evidence to help exterminate THE FINAL BUG. The unique CLUE POCKET in the back cover of this book holds hands-on clues - a photograph, a computer printout, a letter, a brochure, a news clipping, and more! They'll brinq you closer to the solution than you may want to get.