This book is the best novel I have read that has been written by Dean Koontz to date.
The unusual family (the "how-did-it-happen' origins of which form an intriguing and compelling part of the book), the Private Investigators that decide to pledge themselves to the case, and saddest of all, one of the PI partnership's brothers who was born with Down's Syndrome - they all add an extra ingredient which leads to the conclusion of a truly exciting, in the end unpredictable (though hints are laid throughout) story - not to be missed!