Missing Among the Stars

Eight-year-old Nancy Drew is faced with another mysterious case!
Nancy and her friends are having an exciting day at the planetarium. The girls eagerly await the most interesting part: the famous professor-astronomer will show them the stars using a top-notch and very expensive telescope. And then it turns out that the instrument is missing!

Was it stolen? Or was there some kind of mistake? Can you solve this case before the world's best girl detective does?