Well, it's not really a confession... it's... well, it's in a mystery novel. Basically, a girl (Mattie) finds out that basically everything she knows about her own past are lies. She gets her adoptive parents (Cynthia and Sir) to explain everything. Mattie is sitting in her adoptive sister's (Elara's) room, when Cynthia and Sir come in. I'm not sure how I should write this explanation without it coming to the cliche "Mattie, I have something very important to tell you" "I know this will come as a big shock" kind of stuff. How do I make it original and believable?