Oliver & Daniel - Lost in a Strange World: The Search for the Quantum Energizer (Volume 1)

Oliver and Daniel are unwittingly drawn into a parallel world, from which they can escape only by finding a lost artifact, which is needed to save the strange world from extinction. Oliver, who is only 7 years old, not only has a massive task ahead of him to track down the artifact but also the responsibility for protecting his 4 year old brother, as their adventure unfolds in this strange world.