The Four Lords of the Diamond

I love the concept of a spy's mind being placed in a body to investigate a mystery and I loved the idea of each book in this series being a completely different type of environment, each being an extremely creative concept.

I find it strange that half-way thru this book I've lost track of the reason for the spy being on the planet. The author focuses alot on the day-to-day living on the world and doesn't keep the opening scene tied in along the way.