The Marbury lens / Andrew Smith.
After being kidnapped and barely escaping, sixteen-year-old Jack goes to London with his best friend Connor, where someone gives him a pair of glasses that send him to an alternate universe where war is raging, he is responsible for the survival of two younger boys, and Connor is trying to kill them...
New York :
Feiwel and Friends,
Walker Library - Curriculum Collection - Juvenile - 3rd Floor
Pull and Hold