I've followed the GhostWalker series and enjoyed them immensely.  IMHO, Murder Game is arguably the best in the series.  The story is riveting and action-packed.  Kaden is the ultimate Alpha male and Tansy is relentless and courageous.  I won't give specifics about the plot except to say that Tansy is helping Kaden (and his team) find out whose murdering people and who's trying to destroy the GhostWalkers by blaming the murders on them.  To say more would truly spoil the story and the journey taken by Kaden, Tansy and his team.  We meet some of the GhostWalkers from previous books, and we are plunged right in the smack of the story, the adventure, the suspense.