I'm just curious if this was an issue before you knew they had these things? I mean, were they things that you were missing and looking for for a long time or was it stuff that you had let go of already in your mind's eye? If you were looking for them and they were keeping them from you I can understand your distress, but have you asked your younger sister to explain why she was holding these things?

I understand sentimental value but it sounds like this only became an issue after the fact. Can you give them the benefit of the doubt? Maybe they were keeping them for a reason. Does it make you feel like a bad Mom, or feel guilty thinking that you hadn't missed these things but he whole time your sisters were holding them close? Do you feel bad for not holding them close yourself, like that should have been your responsibility and not theirs?

One sister has passed, the other is your only remaining sibling. If you haven't thougt about these things in years and you haven't missed them is it really worth the stress and conflict? I mean, is it really such a horrible thing?

Food for thought?