Cirrus@Austlit

'Angels and demons are not what you think. They are aliens, and the Midworlders are their representatives on Earth. Heath is an Angelic Midworlder with a tortured past where he could not save the woman he loved. Evie is a woman haunted by a dark presence in her mind that allows her to see the angels and demons around her. Heath saves her when she is attacked by Demonic Midworlders but will he fail her like he has others before? These two tortured souls are connected by the past, a past that has left an evil lurking inside Evie that could kill them both.'

Source: Publisher's blurb.