Board Thread:General Discussion/@comment-25926288-20151207015752/@comment-6175354-20151207161229

Eskaver wrote: Thye won't be sharing a heart because.....Emma's heart can't be ripped out. Did she forget that?

Plus, she could have stuck it in his body and the journey to the Underworld wouldn't be important. I don't think they should have let Emma lead since she is clearly not thinking straight. It is very possible that Emma can rip out her own heart, similar to how Henry was able to. I got the impression, that part of the reason they need to retrieve Hook from the Underworld, is because his body is beyond repair.