Perplex City Faces Reality Check

It sounds like the back story for a cheesy Keanu Reeves vehicle: The Receda Cube has been stolen from the Perplex City Academy and secreted away from the unnamed planet to Earth.
But, on July 13, people worldwide are expected to begin searching for the mysterious missing cube and the real $200,000 prize its recovery will bring.
The hunt is at the heart of Perplex City, a new alternate-reality game, or ARG, and the first major effort in the category to launch as a stand-alone project rather than as a marketing tie-in to something like a video game or a movie.
Wired News: Perplex City Faces Reality Check