Museum mysteries (Steve Brezenoff)

When the plans for the Bat-Wing, a historical aircraft, disappear from the Capitol City Air and Space Museum, eleven-year-old Amal Farah's father is blamed, and it is up to the four young friends to solve the mystery and save her father's job.

When a priceless sculpture disappears from the Capitol City Art Museum, thirteen-year-old Clementine Wim, daughter of an assistant curator, and her three friends set out to solve the mystery and recover the Statue of Gudea.

When the spacesuit of famous astronaut Sally Ride disappears from a traveling exhibit, Amal Farah, daughter of the Air and Space Museum's archivist, and her three friends, are determined to find the culprit before the exhibit is cancelled.

A ghost has been spotted lurking around Capitol City's American History Museum. It seems someone-or something-is unhappy with the museum's recent exhibit on the Vietnam War. Can Raining Sam, the son of the head of educational programs at the museum, and his friends figure out who's behind the haunting before someone gets hurt?

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...