Conrad Williams 
Hell is Empty [EPUB ebook] 

Joel Sorrell is drinking hard while his personal life collapses around him. An SOS from a childhood sweetheart springs him into action, but nothing about her or her problem seems to make any sense. Everything points towards an old enemy of Joel’s, who has risen to prominence while incarcerated. On the run and in fear for his life, Joel finds himself tangled in a web affecting both the present and the past, and most certainly the people closest to him.