After being put back to sleep and abandoned in an old museum, Slappy is brought to life by a curious girl on a school trip. Out for revenge, Slappy uses his powers to raise an army of creatures from the exhibits. But when the museum closes, Slappy and his new friends are locked inside with Arragatis, an ancient mummy with his own plan for revenge. It's dummy versus mummy as Slappy faces his most dangerous and frightening opponent yet! Can Slappy defeat...

A.J. thinks that nothing can possibly be as boring as a sleepover in the natural history museum. But anything can happen when Ms. Krup is in charge. The tour guide says that dinosaur skeletons come to life in the middle of the night. Is she right?

The adventures of the Moffat children living in Cranbury, Connecticut in the early twentieth century as they create a museum, participate in their sister's wedding, and try to buy a trolley car.

Fergus, the pet mouse in Miss Maxwell's classroom, stows away in a backpack on a field trip to the museum. He makes a new friend, Zeke, another mouse, who shows Fergus many interesting exhibits, but now he wonders how to get back to school.

The mummy of King Tut's grandmother is the main attraction at the Fogville museum, but Echo the bat and his human friends, the Bat Pack, discover that at night she is rising from her sarcophagus--can they find a way to bring peace to this restless mummy?