In a multiverse of worlds, although the Duke of Norfolk found a method to travel across parallel universes, his method was quite similar to Neville's erroneous early attempt.
He utilized a designated entity in one universe to replace its counterpart in another, and in the process, smuggled a few people across.
However, in this complex multiverse environment, the replacement acting as the vessel required an anchor that had to be chosen with extreme care.
Chapter 502