There have been some stories that keep the villain a mystery character until the near the end. However, with mine, I want the villain to in the first scene, cause the first scene is the inciting event, which he incites himself, since he is the villain who starts everything of course. But then I want to keep him a mystery character for the MC to find and keep him off the page until over half way through the story. Is this too long for the reader to want to see him again after his first and will wonder too much about when he is coming back, since the story starts out with getting a dramatic introduction from him? Most stories will either have the villain appear consistently throughout, from the beginning, or they will save him as a mystery character that is discovered later on. But to introduce him in the first scene, then not have him reappear till over halfway through, I have never seen that before. Could it leave the reader hanging perhaps?