TheTrojanProject by Eileen Thornton

It's a peaceful night for Sarah and her family, until a strange light rises from behind the Cheviot Hills and a green mist descends across the valley. Its swirling tendrils, seeming to bear a life of their own as they snake across the land, can only be an omen of something sinister and evil.

When her husband fails to return from work, she and her children set out to search for him. A terrifying discovery awaits her in the valley below her home and before long, they find themselves caught up in a desperate search not only for her husband Pete, but also for the meaning of the green light. Pursued by the military, she slowly begins to realize her life, and the lives of those she loves, are in mortal danger.

The Trojan Project takes you into a nightmare world where no one is quite what they seem, and trust becomes a word with little meaning. Beware the green light in the sky; you never know what it hides!