The letter that Frank left Brianna from Frank stated much of what you said was in this second letter. When she went and told Claire, she said something to the effect of Daddy knew, he knew Jamie was alive and about time travel. That's why he taught her how to shoot and Alot about survival "back then"

So she knew that Frank knew. Also that he kept it from Claire and Brianna until he died. While he ran around on Claire and made her life miserable when she could have been happy and he could have married anyone else that he wanted to. He could have put Brees life in less danger had he told Claire what he learned,but instead he made Claire put all memories and thoughts of what happened., out of her mind and never speak of it or Jamie. IMO Claire and Brianna had f the right to know.

I don't see Tiger Lily and Adnan being married long. All he wanted was a green card and a baby. She married him he's 20 something years younger than her. He knows she's got $ , he's taken over"managing"her businesses. Because you know he"the man"is smarter. (G-D how did she manage to be a multi millionaire without him for so long!?) Yes, it's sarcasm.

Why would they go through Okrakoke , if Jemmy went thru the stones at CraigNaDun in Scotland, he'd come out in 1700s CraigNaDun(id think since Roger and Buck ended up in Scotland, wrong year, but still Scotland)

They're only reading a letter a week and I don't think there's a way for Brianna to write back to her parents and if she could, who knows who would get it. Even last week LJG said he'd been sending letters to various places to try to find Claire to do the surgery. I'm sure if she could she'd already have written about Jemmy being taken. (Although I think Jemmy is in the tunnels, not in the past), but that tunnel seems to be a huge portal with the buzzing Bree heard when she was in there.