I have four DC and she's number 2. I have always operated v. strict rules that protect the younger one's beliefs so as an example when my eldest (3.5 yrs older than DD2) once told her the FC doesn't exist she was subsequently not allowed to help in the (after the younger children have gone to bed) Xmas eve preparations which I have tried to make as grown up thing that only people who can keep the secret can do. So.... DD2 now knows that the easter bunny doesn't exist but also knows to "keep the secret" so that the younger two can still live in that lovely "bubble". But this has meant that whenever I question her on Father Christmas I don't know how to interpret her response. She responds almost as rote, but is that because she knows my rules or because some part of her still believes. If you could suggest ways that I could approach her I'd be really grateful.