Lincoln Rhyme and Amelia Sachs are dumbfounded when they encounter an unsub like they have never seen before. He uses dating apps to enter the lives and hearts of his victims, to gain their trust, only to shatter their hearts when he reveals his true self. That it was all a lie. That it was just a game to him. “Swiping Hearts” has been released in eBook and audiobook in the USA, Canada, the UK, Ireland, Australia and New Zealand.