Don't Ever Get Old by Daniel Friedman

Eighty-seven-year-old Buck Schatz, a retired cop, passes his time watching television and smoking Lucky Strikes, while living with his wife of more than sixty years, Rose.  When an old acquaintance of Buck's reveals on his death bed that SS guard Heinrich Ziegler, whom they both encountered during World War II, escaped with loads of gold, Buck is stunned. Ziegler almost beat Buck to death during the war and he, like everyone else, believed that Ziegler died at the end of the conflict. Nursing some revenge, Buck decides to look for Ziegler and enlists his twenty-something grandson, "Tequila," to help. Buck soon realizes that he's not the only one after the treasure and, as the body count mounts, he and Tequila find themselves deeper into the mess. Don't Ever Get Old is an entertaining debut mystery with lots of personality.  The relationship of Buck and Tequila, for me, was reminiscent of Janet Evanovich's pairing of Stephanie Plum and Lula, although not so over the top.  I look forward to another outing with Buck.