School & Library Binding
(Turtleback Books, Jan. 1, 1995)
FOR USE IN SCHOOLS AND LIBRARIES ONLY. When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings.
The two sets of Bobbsey twins, Freddie, Flossie, Bert, and Nan, and their friend Scott investigate the theft of a valuable stamp from an exhibit in a Washington, D.C. museum
A group of young paleontologists hope an old map they have found will lead them to a dinosaur graveyard, though they suspect someone is trying to foil their plans.
When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings