Board Thread:Spoilers!/@comment-6175354-20131105202753/@comment-6175354-20131115042642

Arctucrus wrote:

Were it Blue, on the other hand, I can easily see the ramifications of her death affecting even Pan, considering his whole "save magic" thang. Peter Pan is not trying to save magic, he is trying to save himself.

According to Wendy, Peter Pan is dying, and need's Henry's heart to survive.