Received through Bookmooch.com

It may be one of the worst winters in recent memory in Paradise, Michigan, but Alex McKnight is looking forward to spending some quality time with his new girlfriend, Natalie Reynaud, an officer from the Ontario Provincial Police. But a chance encounter with a mysterious old man, Simon Grant, turns chilling when he seems to know a lot about Natalie and her family. When Natalie and Alex return to their room later that evening, they discover the same hat the old man was wearing lying outside their room filled with ice and snow and containing a cryptic note: I know who you are! A day later, Simon Grant is found frozen to death in a snowdrift. Natalie and Alex are stunned. The mystery is just too much of a coincidence for Alex to ignore. His trail leads him to a blood feud buried decades ago in Natalie's family's past-an event that can still drive men to kill each other....

Another great one in the series. I didn't realise that I haven't read the previous one where he meets Natalie, so now I'll have to catch up with that as well.