Adam Adlar is alone in an isolated apartment building wondering why his scientist dad hasn't been able to get home for over a week . . . Even he doesn't want to

More nonstop action in the sequel to Z. Rex! Thirteen-year-old Adam Adlar used to have a normal life. Then his father created the most advanced video-game techn

It's the end of the world as we know it . . . The stakes are higher than ever for Adam Adler, and he will be put to the test in a way he never imagined. Taken b

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! Kids love collecting the entire alphabet and super editions! With over 8 million copies in print, th

Adam’s father is developing cutting-edge research on virtual electronic game-playing when suddenly he disappears—and Adam finds himself being hunted by men