I've read books from each of these authors separately and I have read books that they have collaborated together for the story. Each are good separately but together they are excellent. This story is a follow up to Relic but it stands alone just fine. Dapper FBI agent Pendergast is the only consistent re-occurring character I recall from their books. Someone or something is preying on the "mole" people , the homeless who live in the labyrinth of tunnels that hide under NYC. When a prominent socialite is a victim, everything changes.
This book has plenty of action, social commentary and thought provoking plot lines to attract a wide variety of readers.
I highly recommend.
Web Site: http://www.prestonchild.com/
This book may have been received free of charge from a publisher or a publicist. That will NEVER have a bearing on my recommendations.