What is the main conflict in Stalking the Angel by Robert Crais?

Elvis Cole is a private detective in Los Angeles, California and has been in the business a long time. Cole is humorous, charming, sharp witted and appreciates the innocence of childhood. He surrounds himself with cartoon paraphernalia and indulges in life and food as if he is still a kid. Cole is good at what he does and has formed strong friendships in helpful places, like the Los Angeles Police Department. Cole has been hired by a wealthy businessman named Bradley Warren to find a stolen manuscript. The manuscript is a priceless, ancient Japanese artifact that was in Bradley's care when it was stolen. Cole follows many leads and clues with hopes of finding the Hagakure but his digging causes Bradley's daughter, Mimi to get kidnapped. Bradley blames Cole for losing Mimi and fires him. Cole has a connection with children and is determined to save Mimi from a terrible fate despite being fired from the case.