You know, I hate to say it, but I'm having the same trouble. Let's see. Little girl growing up. Guardian angel protector type stepping in at key moments of her life. Turns out to be a time travelling protector looking out for her. If I see it in a bookstore, it will all come back to me. Been years since I read it. I just remember it being one of my Dean Koontz favorites.
I have better recall of False Memory and From The Corner of His Eye. I read them more recently and enjoyed them both very much. Especially False Memory. The number she did on those two legbreaker assassins in the BMW was priceless. Pays to pack a Colt .45 Combat Commander in your purse, I always did say.