It's a theory on time travel, space-time, black holes and few other concepts of cosmology which are based on certain facts & possibilities and a theory of possibility of existing multiverse is also explained in simple non-mathematical terms. Have you ever wondered where we come from ? What is our universe made of ? Can we travel in time ? What are the possible ways to travel in time ? This book tries to explains how time-travel is possible and how we may even have traveled in time without even us knowing about it. Time travel may be considered as a science fiction but today's science fiction will be tomorrow's scientific Discovery, keeping this is mind our knowledge should not be limited to current facts but should expand to future possibilities.