What does Harry decide when Murphy asks him to tell her what he knows and what he is keeping hidden in chapter fifteen?

Harry realizes several things and the first is that it will severely incriminate himself if he tells her anything. The second is that if he tells her enough then the man who sent the demon after him will also go after Murphy and Harry knows she won't have the skills to protect herself. Harry also realizes that if Morgan thinks that Murphy knows anything about the White Council then they won't hesitate to kill her.