There are many stories about kid crusaders who save something, but none like this one. With steampunk, tall tale, and just plain silly elements, the story of how ten-year-old twins Jimmy and Stellafound out aboutthe unique vehicle called the hippomobile,learned its history, and then used it to rescue their beloved town of Wymore is an original variant on a tried and true theme.A cast of wildly eccentric characters, most of whom are the twins' forty-seven grandmas and grandpas; a liberal sprinkling of diner slang and odd colloquial phrases, many explained in footnotes; and a sense that the events described never took place but could have are among the surprising ingredients of this unconventional creation. The fact that there really was a hippomobile with its own history doesn't interfere with the fun.