The Evolutionary Void by Peter F. Hamilton
This final volume of the Void Trilogy deftly wraps up all the multiple plot threads woven throughout the previous two volumes, giving a satisfying conclusion to the epic series.
Trapped behind a force-wall, erected by the Accelerator Faction, the Commonwealth government must rely on their various agents outside the barrier to save the galaxy from the Void expansion. Just about everyone finally makes it to the Void: the three Dreamers, the various Faction agents, the Living Dream pilgrimage, Ilanthe and the Accelerators — no one seems to miss out on the dramatic conclusion, and we finally discover the origin and true purpose of the Void.
Meanwhile, inside the Void, Edeard the Waterwalker, using the Void’s time-resetting ability, has finally created the perfect society. But this perfection may not lead to the bright future he envisages for his people.
Peter F. Hamilton knows what his audience wants — a hefty chunk of bio-enhanced action/adventure, and he provides it by the bucket-load in this trilogy. The series can be read as a stand-alone, but I would recommend reading the author’s Commonwealth Saga (Pandora’s Star and Judas Unchained) first, to get the most out of the many references in the Void Trilogy to Commonwealth Saga characters and their backstory.
If you are looking to start a marathon space adventure series, give the Void Trilogy a go — you won’t be disappointed.