I probably liked this more than my 3 star rating would indicate, but I couldn't quite bring myself to give it 4 stars. For a pretty "out there" plot, I found it surprisingly plausible. However, there were long stretches that were just the internal thoughts of the main characters, and these stretches, while well written, were pretty redundant. There wasn't enough action for my taste. Really great idea and well executed, it just didn't quite get me all the way there. But I will definitely be looking for other titles from Lisa Henry - the story was very well crafted.