The Case of the Missing Dinosaur Egg — Martha Freeman

A week before the annual Easter Egg Roll on the White House lawn, First Kids Cammie, Tessa, daughters of the first female president, and their cousin Nate attend the opening of a new dinosaur exhibit at the National Museum of Natural History. As the prize display, a seventy-million-year-old dinosaur egg, is being presented, it cracks, and a tiny hatchling emerges! This is no dinosaur, but an ostrich. But where is the real dinosaur egg? Readers will quickly be caught up in this new mystery with the First Kids as their investigation leads them behind the scenes at the museum.