Interstellar traveller

Mark Anderson was six when his parents vanished through a blue door in a dark alley, leaving him with a huge book that would one day show him how to find them. Twenty years later, Mark is a struggling physics student, bullied at school and always late for class. But when the book's glowing star starts to react to his dreams, he knows the time has come. His search for his parents will take him across the stars, through worlds that have never seen Earth. Along the way he will face ruthless emperors, tyrant rulers and empires that rule by fear. Every world has a price, and every victory takes him closer to the truth about why his parents left. One boy. One ancient book. A journey across the universe.