I'm debating whether to keep a twist in my book/epic or not. One of the characters gets caught up with the villain ( a gangster ) , and agrees to fake amnesia gaining the confidence of this girl in order to discover where she has hidden some money. Midway into his manipulations , he is attacked and really does get amnesia. The girl gets spooked by his behavior and acts like they've never met - which is then undermined by several characters making him wonder why everyone around him is behaving oddly. This isn't explained till the last few chapters. Too much? The only book I've read dealing with amnesia was The Bourne Identity, which I loved.