nAlien Invasion of Earth n Peter Thompson, a typical seventh-grader, finds himself touring the planet with his friends Susan Simmons and Duncan Dougal, and three aliens in disguise n Their mission? To file the final report that will determine Earths future in the universe. n As the clock ticks away the hours before their meeting in space, the tour becomes weirder and weirder. The three friends come face-to-face with a plague of poots and Big Julie -- the weirdest alien yet n Meanwhile Peter discovers a secret that was hidden for decades. Will his discovery save Earth, or isi it already too late to stop the aliens from destroying the planet?