Song of the Ovulum

Fifteen years after helping to defend Heaven from a demonic onslaught, Billy and Bonnie Bannister, along with Ashley Foley, find themselves imprisoned in a maximum-security facility where experiments are conducted to uncover the secrets of longevity. Meanwhile, societal acceptance of dragonkind has collapsed, leading to the Enforcers' abduction of Billy and Bonnie's twin infants and the theft of Excalibur, aimed at creating a weapon against the dragons. As tensions rise, Bonnie begins to uncover a significant secret from her past through dreams, while Joran and Selah, the teenage descendants of Methuselah, remain trapped in a mysterious realm, influencing events in the human world from afar.