Not a bad middle school read. So-So rating from me. Mor and even my 3-year-old twins loved. #mordecaireads
Jack and fellow foster kids, Matt and Ava, sued to be able to be on their own. They begin working for Hank, a brilliant millionaire. (gladly, for the geniuses. Not so much for Jack who gets to do grunt work and none of them get paid.) They go to Antarctica while Hank judges a contest. They also have to solve the disappearance of one of Hank's friends.
Plenty of real-world science plus a good adventure for kids.