Complex sentence: Nebogipfel, with his consciousness enhanced by his time with the Constructors, leaves the Time Traveler behind, to travel with the successors of the Constructors, and these plan to travel "beyond" the "local" multiplicity into a new realm of historical dimensions.
Split into simpler sentences: Nebogipfel, with his consciousness enhanced by his time with the Constructors, leaves the Time Traveler behind, to travel with the successors of the Constructors. These successors plan to travel "beyond" the "local" multiplicity into a new realm of historical dimensions.