The Guardians - Book 3 (The Guardians Series, Books 1-3, #4)

Earth Defense Forces capture several Tyrax prisoners during the Asteroid Belt Space Battle and learn an awful truth about what the Tyrax are planning next. They are developing a brand new weapon to use against Earth; a weapon so powerful it can destroy whole planets with one or two bombs.
The Tyrax are building a large particle accelerator to create an antimatter weapon to use against Earth. The first opponent to build the weapon will win this Galactic Space War between good and evil alien r...