Infinity Blast and the Planet of Mystery (Infinity Blast, Book #2)

Infinity, Twilight, Gabe, and Lily are back! Having saved the world (well, the universe, really) from the Space Weapon of Doom, the four are now students at the newly-opened Space Academy in the wilds of Oregon. At the academy, they befriend alien students from across the universe and learn the basics of space exploration and space combat. The only problem is, someone or something seems to be out to get them. When the gang along with Infinity's arch-nemisis Tess crash-lands on a mysterious planet, they need to figure out who is behind all their mishaps or they might never get home.