Don’t Let Go. Harlan Coben. 2017.

Fifteen years ago in small-town New Jersey, a teenage boy and girl were found dead.

Most people concluded it was a tragic suicide pact. The dead boy’s brother, Nap Dumas, did not.

Now Nap is a cop  - but he’s a cop who plays by his own rules, and who has never made peace with his past.

And when the past comes back to haunt him, Nap discovers secrets can kill....