In 2261 the galaxy was thrown into upheaval in the wake of the last great Shadow War¸ and the galaxy was caught between ages. It was a time of great change and the responsibilities of the younger races were compounded by the loss of the Ancients. The galaxy - and all within it - was theirs. When a huge and ancient artefact was found drifting in hyperspace by flight crews of the newly neutral Babylon 5¸ it was brought back to the station to be studied. Bringing the artefact into realspace would trigger a chain of events the Vorlons were only able to postpone at their strongest¸ that would test the tenacity of Captain Sheridan and his crew to the fullest. Through the artefact they found a dimension they called Thirdspace¸ and the Harbingers it was home to.
"This is a sourcebook for the Babylon 5 Roleplaying Game Second Edition that explains in more detail the events that take place in the Babylon 5 telemovie Thirdspace. Such a massive event would send ripples through the galaxy¸ and this book explains a few of them. Containing rules on how the Thirdsace gate affected Babylon 5 and its occupants¸ statistics for the deadly Harbingers and the personalities involved¸ this sourcebook gives readers everything they need to use the events in their own campaigns - if they dare to do so.