Under Orders by Dick Francis-  This is the first book I've read by this author.  I really enjoyed reading it.  It was full of action and left me hanging until the end.  Sid Halley is a former horse jockey turned private investigator.  He struggles with his past injuries that ended his jockey career, while trying to decide what he feels about his live in girlfriend.  I really felt for him throughout the story.  He was a believable character to me, and I enjoyed watching his life unfold during the story.  I also enjoyed his girlfriend Marina.  I love a woman who doesn't back down from a threat.  The mystery part of the story was good.  I'm not one to figure it out early, so I was left wondering until towards the end.  I look forward to going back and reading more by the author.