Fire on the Border — Kevin O'Donnell

HER FIGHTER ARROWED TOWARD THE ALIEN SHIP...

Lieutenant Darcy Lee could not tear her gaze away from the giant alien vessel displayed on the screen. The enemy's defenses had to be manipulating gravity in a way that Terran researchers had never suspected possible. But Darcy had watched as her fellow pilots were destroyed. And she thought she understood what had happened.

Now she was about to take a terrible chance to prove her theory. On her own authority. But what choice did she have? "Random corkscrew trajectory to intersect mathematical center point of Wayholder mothership," she said to the ship's computer. "Target lasers for nearest major gravity shield. On impact, cancel all acceleration and divert full energy production to lasers. Fire lasers at pre-selected targets."

Now she was committed and there was no turning back. And if her theory was wrong? She would die...