内容简介：
It began with Johnny and Joey's simple idea to dig a tunnel, and that led to the discovery of a magic elevator. In that elevator, the brothers have traveled to wondrous lands and have made many new friends and an enemy or two. Throughout their travels, there has remained one constant-the mysterious red button with an ominous warning beneath it: "Whatever you do- don't ever, ever, ever, push this button Not ever " So far, the boys have obeyed. But now, in this, the final adventure of Johnny and Joey, the red button will be pushed, and the brothers learn the hard way that some warnings should be heeded