Seconds to Live (Scarlet Falls Book 3) by Melinda Leigh is a possible serial killer mystery. I gave it three stars.
It's about Mac Barrett and Police Detective Stella Dane. She's the only one who believes him about the woman he saw in the road that then disappeared.
The killer has a message to send and thinks Stella is the one to receive it. Can she get the message in time to stop this killer?
Link to purchase: https://www.amazon.com/Seconds-Live-Scarlet-Falls-Book-ebook/dp/B017IKQW56