Watson, the Town and Country Public Library detective and mascot, alongside a young runner, waved to the crowd during the 2009 Dewey Dash, hosted by the library in Elburn. This year’s 5K run/walk and 1-mile run/walk will take place Sunday, April 11, starting at the library, 320 E. North St., Elburn. Race-day registration is from 7:30 to 8:30 a.m. The cost for the 1-mile event is $15 for children and $25 for adults. The cost for the 5K is $25 for all entrants. Proceeds will benefit the library.