I am a fan of Koontz books, so I am used to the sometimes frantic tempo he can employ in his stories. The Silent Corner was a bit too frantic to keep my interest.  The main character never became sympathetic, I knew too little about her personality, only what was driving her on her quest.  The characters that were introduced to help her along were never fully realized.  They were too fleetingly included, which I realize was done purposely.  The main character, Jane, was supposed to be on her own, on the lam, running from bad guys.  No one was safe, she didn't want to pull anyone into her hunt for "the truth."  The downside to this was never getting attached to any of the characters, I wasn't invested in the plot or in finding out what the "truth" was.  Disappointing, I found myself skimming through chapters to get to the good parts.