Set exactly three years after Dimension Slip, the secret of Jay's first adventure is still intact, albeit not for much longer. For when he cracks and lets slip something that he shouldn't do to his friend, Dave, over the phone, a strange train of events is set in motion. The Aurora Borealis appears at a latitude that it shouldn't do. A sinister figure threatens our hero for no apparent reason, while he's researching in the local library. Before long, all manner of unsettling incidents occur. Jay's friends disappear and, worse than that, he finds himself hunted like an international criminal, aided only by a mysterious counter-agent in a white Porsche. It turns out that this ex-spy is not all that he seems and, furthermore, that the Powers now chasing Jay are worse than he could have imagined. Can he manage to alter the future for the second time? Can he continue preventing what had happened from ever happening? World Lines hold the key...