Super Sammy's Incredible T-Shirt

Sammy's determination to become a champion long-distance with a good mixture of humor, mystery and adventure. Dr Hercules' Body Building Kit includes a T-shirt into which Sammy's growing muscles will expand---or will they? This 'lucky' shirt becomes the property of a research laboratory, it is retrieved but now endows extraordinary powers. Sammy wins the race (without the shirt) in the finale to an action-packed story much enjoyed by boys of nine and over. The promising cover should help it to sell well and a copy in the library would not be amiss.