Although excited at the prospect of a fancy class trip to the art museum, the bumpy bus ride to get there leaves Nancy feeling anything but fancy.

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.

It is field trip day to the city museum, and while Stewart expects a boring day of facts and learning, Waldo and Sassy are looking forward to lunch; then they find that the dinosaur room is full of tempting bones, the astronaut boots are good for chewing,and one of the dioramas features a squirrel on a sidewalk, but the highlight is the delicatessen--if only Waldo and Sassy's disguise can fool the guards who are searching for two dogs.

Jack is called to the Tate Museum, where dozens of people have disappeared beneath the surface of a painting. While investigating, he finds himself smitten with a mysterious art expert Amanda Fielding. But Amanda has plans of her own, and soon the two are traveling through time, back to the Roman Empire and then forward through history, from King Arthur's court to Sherwood Forest. As they explore histories past as written and overwritten, the balance...

Snowy weather and fish fossils help bring together two Jewish college freshmen spending winter break in Washington, D.C.

Just days before a massive exhibition opens at the popular New York Museum of Natural History, visitors are being savagely murdered in the museum's dark hallways and secret rooms. Autopsies indicate that the killer cannot be human. But the museum's directors plan to go ahead with a big bash to celebrate the new exhibition, in spite of the murders. Museum researcher Margo Green must find out who - or what - is doing the killing. But can she do it in...