Donald J Sobol

Suspects who are identical twins...
A leaking tent...
Magical worm pills...
A zebra's portrait...
And a sheet of toilet paper from Spain that's been swiped!
These are just some of the ten brain-twisting mysteries that Encyclopedia Brown must solve by using his famous computer-like brain. Try and crack the cases along with him—the answer to all the mysteries are found in the back!

With a knack for trivia, Encyclopedia solves mysteries for the neighborhood kids through his own 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 as he solves ten new and even more confounding mysteries, including a case of a stolen watch, disappearing money, a headless ghost, and more. And with the clues given in each case, you can solve these...

Ten exciting new adventures for the famous boy detective!
Everyone's favorite fifth-grade gumshoe is back on the case! Following the classic Encyclopedia Brown formula, this installment presents ten mysteries, complete with answers at the end of the book that allow the reader to solve the cases along with the boy detective. Join Encyclopedia Brown as he takes on cases of giant diamonds, lazy lions, a country singer, and of course a trip to the...

America's Sherlock Holmes in sneakers continues his war on crime in ten more cases, the solutions to which are found in the back of the book.

The solutions to ten mysteries solved by Leroy "Encyclopedia" Brown are given in a separate section challenging the reader to match wits with the ten-year-old mastermind of Idaville's war on crime.

The town's ten-year-old walking encyclopedia again solves ten neighborhood mysteries. The final solutions to the cases are at the back of the book, giving the reader a chance to compare his skill to that of Encyclopedia Brown.