Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-166.137.156.44-20140108021332/@comment-4091815-20140616064123

You are correct in so far as we don't know what exactly what constitutes pack membership. But using the basic concept of packs being those who work together.

Derek and Scott were already working together that night along with Scott's human pack.. Considering that Derek bit Jackson right after and had bitten Isaac by the time Jackson rejected him... He's always had at least one member.