NIGHTWALKER (4) by Connie Hall: Vampire Striker Dark, part of the U.S. Bureau of Supernatural Phenomena, is on the trail of a rogue agent when he meets P.I. Takala Rainwater. Takala is after the same agent because she believes the woman may be the mother who deserted her and her sisters as children. Striker and Takala work together to track down the agent and the evil vampire she seems to be working for, one of Striker’s longtime enemies. Hall’s book is exciting from start to finish. Striker and Takala have real chemistry, and their love story sizzles.