Fifteen brief cases allow the reader to match wits with ten-year-old crime-buster, Encyclopedia Brown, as he investigates cases, including a case of stolen diamonds, a skunk ape, a hit-run car, an Arctic explorer, and more.
Idaville's secret weapon against lawbreakers, ten-year-old Leroy "Encyclopedia" Brown, helps the police force solve ten new cases, the solutions to which are found in the back of the book.
Ten brief cases allow the reader to match wits with ten-year-old crime-buster, Encyclopedia Brown, as he investigates such cases as toys missing from a fair, music stolen from a singer-songwriter, and arrowheads that disappear during a campout.