A tiny submarine that flies through the air... A half-dollar worth five thousand dollars... Some tipsy birds... A world that fits in the palm of your hand... An

Encyclopedia Brown is confronted with ten new cases. Solutions are given in the back of the book.

Encyclopedia Brown, boy detective, solves ten more mysteries. The solutions are given at the end of the book.

This special introductory offer features some of Encyclopedia Brown's first cases ever: “The Case of the Diamond Necklace” and “The Case of the Knife in t