Ten brief cases in which the reader pits his wits against those of Encyclopedia Brown, an ingenious twelve-year-old detective.

Idaville's secret weapon against lawbreakers, ten-year-old Encyclopedia Brown, assists the police force with ten insoluble cases. Solutions are at the back of the book.

Edgar Award-winning author Donald J. Sobol's Encyclopedia Brown mysteries star a humble 10-year-old genius. Here Encyclopedia employs all of his detective skills to investigate 10 more brain-twisting cases with his friend Sally. Thieves and crooks of all ages better beware if they roll into Idaville thinking the town is easy pickings. Encyclopedia hasn't met a case yet that he couldn't crack- or a criminal he couldn't help put behind bars.

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.

Encyclopedia solves mysteries for the neighborhood kids through his detective agency. But his dad is also the chief of police, and every night, Encyclopedia helps him solve his most baffling crimes. Join Encyclopedia Brown on fifteen of his toughest, most exciting cases ever, including a case of stolen diamonds, a skunk ape, a hit-run car, an Arctic explorer, and more. And with the clues given in each case, you can solve these mysteries, too!