This may be a tough question to get answered by anyone if they haven't read my story, but.... I have been writing a sci-fi story. I am new to writing and I am not a big reader of books, so it's a bit of a challenge. I am however proud of my 83,000-word story! The first couple chapters are a back story... They take place a long, long time ago... The characters you meet in these chapters, you never hear from again... The main character makes his debut after this. I have had a few people beta read my latest draft and they seem to love it... But a literary agent read only the first chapter and seemed confused. He said there was too much action for a first chapter... I need more development for my characters... My question is, should I maybe write a small paragraph or two at the start of Chapter 1 saying, this takes place blah, blah... (like before each Star Wars movie) or, just trust the reader will figure it out as they read PAST Chapter 1? Or should I maybe name each Chapter? Like: Chapter 1 - 66 Million Years Ago, to give the reader a hint or what's going on?