Bobbsey Twins; 10 oz.; 179 pages; HC heavy wear good solid reading copy '50 Grosset & Dunlap Pictorial end pages. The Bobbsey Twins barely escape a frightening encounter with a ferocious bull in this countryside adventure. The Bobbsey Twins--Bert and Nan, Freddie and Flossie--have won millions of fans since their first adventure in 1904.