Capitol City's Natural History Museum is haunted - or at least that's what someone wants people to think. But Wilson Kipper, son of the museum's head paleontologist, knows better. When the mysterious occurrences go from spooky to dangerous, the museum is forced to close its doors. Can Wilson and his friends get to the bottom of things, or will the Natural History Museum be closed for good?

When the plans for the prototype of a failed flying machine go missing from the Air and Space Museum's archives, Amal's father, the assistant archivist, is blamed. No one suspects a crime has been committed - except Amal and her friends. With her father's job on the line, it's up to them to track down the missing plans and get to the bottom of the museum mystery.

There's a vandal in the Capitol City Museum of American History, and he or she is intent on defacing priceless artifacts. Raining Sam, the son of the Head of Educational Programs and local Ojibwe tribe member, is determined to get to the bottom of things before anything else can be destroyed. But when Raining himself is considered a suspect, he and his friends must race against the clock to unmask the real culprit and solve the museum mystery before it's too late. Discussion questions, writing prompts, a glossary, and nonfiction resources continue the reader's learning experience long after this e-book ends.

A priceless sculpture has been stolen from the Capitol City Art Museum! But with insurance money to cover the theft and build a new education wing, no one is overly worried about getting the missing art back. The only ones who seem concerned with solving the case are Clemetine and her friends. Can these determined detectives get to the bottom of the art-museum mystery before it's too late?

A shipment of dinosaur bones meant for a new exhibit has been stolen from the Capitol City Natural History Museum! But even worse, the group of paleontologists working on the shipment has disappeared too and among them is Wilson Kipper s mother. Wilson and his friends are determined to get to the bottom of the mystery, but can they do it in time to save his missing mom?"

When the spacesuit of famous astronaut Sally Ride is stolen from a traveling exhibit, there s no shortage of suspects in Capitol City. Thankfully, Amal Farah, daughter of the Air and Space Museum s head archivist, and her friends are on the case. But they re running out of time and clues are hard to come by. Can they solve the mystery of the space case before the one-of-a-kind artifact is lost for good?"

Something is weird at the Museum of Natural History. There are hominids in the dinosaur exxhibit! Wilson Kipper knows this can't be right, since no hominids lived during the time of the dinosaurs, and it turns out his suspicions are someone is altering the exhibit at night. Is someone on the janitorial staff? A new professor or her daughter? Or someone else? Wilson and his friends need to get to the bottom of this messed-up exhibit.

The Air and Space Museum is adding a new exhibit, and Amal Farah and her friends get to attend the grand opening! But before the new exhibit goes live, some of the items go missing. This won't be good-the exhibit is funded by a rich local businessman, and without the objects to show, the exhibit can't open. Did another museum take the object, trying to make up for missing funding? Was it a thief interested in telescopes? Or someone else? Amal and her friends are determined to solve this crazy mystery!