Alien Invasion 3-D mazes. The aliens have arrived, and in spite of all their advanced technology, they’re feeling a little lost. Have some 3-D fun while you guide them around our big blue planet. Put on the enclosed 3-D glasses and watch these brilliantly colored labyrinths pop right off the page. Some of the mazes offer twice the excitement with double page spreads. And don’t worry complete solutions guarantee that you’ll be able to find your way before the visitors get impatient and vaporize you.