A school trip to the natural history museum goes awry when the curator, Ms. Krup, loses her giant cockroach and A.J. and his friends decide to explore the museum in the middle of the night.

When the night guard arrives at the Ocean room at the Museum of Natural History, he wonders if he left the bathtub faucet on at home.

"Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders"--

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.

When mummies go missing all over London, eleven-year-old Theodosia puts aside her fight against the Serpents of Chaos to save her father, who is suspected in the thefts, all the while avoiding a string of new governesses.

Now a full-time student at Hyperspace High, John Riley and his fellow classmates go on a field trip to the high security museum planet of Archivus Major--but the trip goes badly wrong when two rival tribes of aliens are "accidentally" released from a cryogenic storage cube.

Although they look scary, Clifford the big red dog learns the dinosaurs in a museum are not real.

Alexander's class is going on a sleepover at the Stermont Museum, but something is stealing bright, shiny objects from all over town, including the museum's treasured Ruby Scorpion, and on the night of the visit the young monster hunters finally confrontthe town's newest monster--a warrior covered entirely by bubble-wrap.

When a visiting history professor finds a letter from Abraham Lincoln to Albert J. Somer, founder of Somerville, in the Somerville Museum, the whole town is soon buzzing with ideas about what to do with the money the valuable artifact will bring in--so when the letter disappears siblings Rowan and Astrid Vega and their friends Jace and Quinn set out to find it.

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...