I discovered Detective Mark 'Heck' Heckenburg from Paul Finch's first book Stalkers. It cost me nothing to download to my Kindle and I was instantly gripped. When I discovered Sacrifice I had no qualms paying. Again, great storyline, couldn't put it down and finished it really quickly. Heck is a fantastic character. Can't wait until the next book, Hunted, out next Feb and have it on my wish list ready to order!