The astounding third Robotech omnibus. The Robotech Masters have come to Earth and the battle-weary Robotech Defense Force must take up arms once more!SOUTHERN CROSSThe Robotech Masters have come to Earth to finish the conquest their Zentraedi warrior-slaves had begun… A battle-ravaged planet must defend itself once more. Dana Sterling, half-Human, half-Zentraedi commander of an elite Hovertank unit, must step into the spotlight of interstellar history!METAL FIREAn alien fortress has crash landed on Earth?brought down in the struggle between the Robotech Masters and Earth''s Human inhabitants. The fortress is enticing, and full of dark mysteries. Who better to brave the ship than Dana Sterling''s 15th Squadron ATACs?after all, they brought the thing down to begin with!THE FINAL NIGHTMAREThe Robotech Masters'' Protoculture Matrix is degenerating, transforming into the Flower of Life?sure to draw the savage, merciless Invid across the galaxy to Earth. But the Army of the Southern Cross vows to fight to the bitter end. And Dana Sterling rages a desperate war of her own to decipher her strange visions and the secrets of her alien heritage…