I don't see Vidal as playing a big role in the story. Cross Enterprises probably just owns controlling interest in Vidal Records just to ensure Christopher doesnt mess up the business. I agree that it is not possible to just "shut a case" just cos the detective thinks scum like Nathan is not worth it ("I've got many other cases worth spending time over") which is why I thin in the next book Gideon still has to "lie low" where they, as a couple are concerned. But now they share the secret Eva will be less insecure. It will always hang over them, I see that Victor will delve into it from San Diego and somehow "organise it" that Gideon gets off..(threatening his father that it is jo longer under seal and would be made public information otherwise....") the flow of the story is Eva and Gideon's insecurities (low self esteem and need for control on both counts) resulting in jealosy etc, the big step forward is when they gain more confidence in their relationship and therefore finding their trust in each other I THINK,....