For seven years Detective Coffman's beat in the SMPD's Homicide Division had been unsurprising, if depressing. Crimes of passion, muggings gone wrong, insurance swindles, even a bear with a chainsaw - she thought she had seen it all...until she met her first Widow. Since that fateful arrest Maria has uncovered a vast and chilling conspiracy of hundreds of women who play a game they call "The Black Widow Challenge". Maria wonders if they're ready for a real challenge. #sakureleon #blackwidow