Deadly Pursuit (Guardians of Justice, bk 2) /Irene Hannon/340 pgs.

Alison Taylor is a social worker who is a protector of the children. Strange occurrences begin to happen--dead flowers on her doorstep, bingo cards with skulls and cross-bones delivered in the mail, just to name a few. Someone is sending Alison a message, and it's not a pleasant one. Her law enforcement brothers become involved,  plus ex-Navy Seal Mitch Morgan, turned detective. There's mystery, suspense, romance--all within a St. Louis setting. Very enjoyable!