Talk:Young Peter Hale/@comment-142.129.135.89-20130408002111/@comment-4091815-20130408005529

A little part of Peter, his memories mostly, were inside Lydia.

He'd implanted them there when he scratched her during the attack, just as he gave Scot his memories in that shower scene in Co-Captain and like Jackson started having Derek's memories after he got scratched in Magic Bullet.

This power is detailed on the Werewolf page.