I don't have any answers for those questions, but I wanted to pull this out. We didn't find out it wasn't Ethan who took Claire, we only found out that Claire remembered scratching Danielle on the arm. It could be that Danielle was working with Ethan, but it's equally plausible that Danielle stole Claire away from Ethan, and Claire broke away from Danielle after she'd already been kidnapped a second time. We just don't know!Originally Posted by poutymouse
I think it was pretty clear that Ethan took Claire. He stared both Claire and Charlie down, then we didn't see what happened, but they were taken away. Ethan came back briefly to tell Jack to stop following him or he would kill Charlie. Jack persisted, and next he found Charlie strung up in a tree.
As for why he wanted Claire, or why the Others wanted Walt, I have no clue.