 Trapped for twelve years within the claustrophobic confines of a spaceship, astronaut Tom Gray is getting close to the destination he s dreamt of all his life: Prote, the first known habitable planet outside the solar system, a primordial Eden. Tom s sole companion is Robert -- the ship s computer, and the downloaded brain of the C.E.O. of Neuroscape, the company that is financing the mission and that will claim ownership of Prote upon Tom s arrival. Their only link to life on Earth is a transmission they receive every five days -- and when that transmission stops coming, it s the beginning of Tom and Robert s descent out of their fragile equilibrium into paranoia, madness... and destruction.