Tim Sweeney of Swazzle poses with Rex Rexington of the mystery thriller "Rex and Boots, Super Sleuths," part of the Nevada County Library's "Get a Clue" at the Library Summer Reading Program. The puppet performance will take place Tuesday, July 10, at two locations: Grass Valley Library-Royce Branch, 207 Mill St. in Grass Valley at 10:30 p.m. and at the Madelyn Helling Library, adjacent to the Rood Center in Nevada City, at 1 p.m. and again at 2:30 p.m. Admission is free. Call the Grass Valley Library at 477-5790 for more information.