In each of the novels, the plot moves at multiple levels. The reader is given parallel stories involving the game story itself as the player characters learn the scenario, solve various puzzles and engage in simulated battles with enemies; the players and their real-world relationships with each other and the game organizers; events affecting the venue staff; and usually some kind of out-of-game plot or conspiracy that will impact everyone involved. These are high-stakes games with massive publicity and cutting edge technology, and they are therefore attractive to a variety of criminals.