From the start of the series, there have been flashbacks to unexplained visits from dark forces in Gen's childhood that have never been fully explained. These events have never appeared to have much impact on Gen, because after each visit an unknown individual always arrives to erase the memory. Gen has often been the only person capable of keeping the Chalaine safe from the dark forces trying to disrupt the holy prophecy, but now that she is pregnant with the Holy Child, Gen protects her no more. The significance of those visits in Gen's past have come into light, so now the Padra Athan and the church want him dead, and so does the Chalaine's new husband. However, the Chalaine's mother, Mirelle, still believes in Gen and she works to keep him from Athan's forces, convinced he is the only one who can protect her daughter. It's a mess of a situation, but one thing is clear - whichever side of the prophecy Gen's loyalties are on is likely to come out on top.
Hunted - things get messy as Gen's true nature becomes known