Encyclopedia Brown and the Case of the Treasure Hunt

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 computerlike brain. Try crack the cases along with him--the answer to all the mysteries are found in the back!