John Gribbin's In Search of the Multiverse takes us on an extraordinary journey through the most fundamental questions in science, exploring the frontiers of reality itself.

What are the boundaries of our universe? Could there be other worlds - do we actually live in a multiverse? Will we meet another 'us' in a different reality? Or are alternative worlds parallel but separate?

John Gribbin guides us through the different theories about multiverses, along the way explaining the every latest thinking about gravity, about time and multiple dimensions, about quantum theory, about matter itself - and even the mind-bending possibility that one day we may be creating universes ourselves.