Lunatic is the fifth book in the Lost Books

The Lost Books (novel series)

The Lost Books series is a group of six novels written by Ted Dekker. When the first letter of each books is taken individually, they spell "Circle". These 6 young-adult novels span the 15-year gap between Black and Red in Dekker's popular Circle Trilogy, and also beyond.-Chosen :This takes place...

 series, written by Ted Dekker

Ted Dekker

Ted Dekker is a New York Times best-selling Christian author best known for mystery and thriller novels, though he has also made a name for himself among fantasy fans. Early in his career he wrote a number of books that would best be categorized as Religious thrillers...

. It is set at the beginning of White

White (novel)

White: The Great Pursuit is a novel by Christian author Ted Dekker. It is the third book of four in "the Circle" series.-Plot summary:...

, from Dekker's Circle Trilogy. It, along with the sixth book, Elyon, was released on June 2, 2009.

Summary

Lunatic picks up where Chaos left off. Johnis, Silvie, and Darsal have returned from the other earth, having claimed all of the lost books of history only to lose them again. More importantly, the world that they have returned to has changed completely. Their home is overrun by their enemies and the healing water of Elyon no longer heals.

Much as the first four books of the series make a set, Lunatic and Elyon are a whole story of their own. One difference is that in the first four books, each had an individual story that would be followed through to completion before leaving the main story to be continued. Lunatic and Elyon are one story, completely incomplete without each other.