A stegosaurus stamp belonging to Nate's friend Claude disappears, and the indomitable Nate the Great is called in on the case. At first, even Nate is stumped -- the stamp has just vanished without a trace! But with clues from the weather and his ever-faithful dog, Sludge, Nate is soon on his way to wrapping up his stickiest case yet.

Young Orville and Wilbur Wright loved building things. From the fastest sled in town to the highest-flying kite, the Wright brothers' creations were always a step ahead of everyone else's. They grew up learning all about mechanics from fixing bicycles and studied math and physics. On December 17, 1903, Orville took off in the world's first flying machine! The Wright airplane is one of the most ama ...