'James and Ethan are Anakim, fallen angels who yearn for reconciliation with their Creator.
Their unabated longing for Him and regret at things past motivates them to strive, albeit imperfectly, to do what they were initially sent to earth to do: to watch over and protect humanity, although this is not without complications. Because of the nature of their fall, passionate love, for instance, can trigger terrible consequences.
'Nick has appointed them to protect Kate from the danger which has come to her through him. The Watchers, fallen angels who rule over the spiritual darkness of the world from their place of imprisonment within it are coming for her, courtesy of the fact that she may just be the very last Anakim, and therefore the conduit they have been looking for. Whilst their influence grows they are still in need of a channel through to the earthly realm from their prison within it. That way they can fully defile what God holds most sacred... humanity.
'Kate might just be the one everyone is waiting for, for much has been foretold of the powers the last Anakim will inherit.
'James and Ethan are not about to let her go.
'James is slowly falling in love with Kate. Objectivity is becoming a challenge. Although she doesn’t fully trust him, and feels resentful of his over-involved position in her life, Kate is drawn to him from the start. It is clear that Ethan disapproves, and she slowly realises why as their passion draw them together and things spiral out of control.' (Publication summary)